Shirley weather in December

In December, Shirley sees average daytime highs of 45°F and overnight lows near 37°F, with 4.6 in of precipitation across 10.6 wet days and about 9.1 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 48°F in the first days to 43°F by the end. The sky is clear or mostly clear about 30% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 06 min by month's end. Set against the rest of the year, December is Shirley's 12th-clearest and 2nd-windiest month. For the whole year in context, see Shirley's year-round climate.

Daytime high: 45°; 9th warmest
Overnight low: 37°; 4th coldest
Precipitation: 4.6 in; 10.6 wet days
Daylight: 9 h 06 min; 7:15 AM – 4:20 PM
Cloud cover: 62%; 12th clearest
Wind: 14 mph; 2nd windiest
Solar energy: 1.74 kWh/m²
Travel score: 1.1; out of 10

Shirley is census-designated place in New York, USA.

Density: 934/km²; people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← November Shirley year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 48°F in the first days to 43°F by the end.

A typical December day in Shirley reaches about 45°F in the afternoon and slips back to 37°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 36°F and 55°F. Set against its neighbours, December runs about 8°F cooler than November and about 6°F warmer than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	49	49	48	48	48	47	47	47	47	46	46	46	46	46	45	45	45	45	45	44	44	44	44	44	44	43	43	43	43	43	42
Avg low (°F)	41	41	41	40	40	40	39	39	39	38	38	38	38	38	37	37	37	37	37	36	36	36	36	36	35	35	35	35	35	34	34

	Avg high (°F)	Avg low (°F)
1	49	41
2	49	41
3	48	41
4	48	40
5	48	40
6	47	40
7	47	39
8	47	39
9	47	39
10	46	38
11	46	38
12	46	38
13	46	38
14	46	38
15	45	37
16	45	37
17	45	37
18	45	37
19	45	37
20	44	36
21	44	36
22	44	36
23	44	36
24	44	36
25	44	35
26	43	35
27	43	35
28	43	35
29	43	35
30	43	34
31	42	34

How December really feels in Shirley

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 26 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Shirley weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	40° / 31°	3.7	9.8	3.9	9.4	0.0
Feb	40° / 31°	3.4	9.1	3.5	10.4	0.0
Mar	44° / 36°	4.4	10.2	2.8	11.7	0.8
Apr	52° / 45°	3.6	10.3	0.4	13.1	2.7
May	60° / 53°	3.3	10.2	0	14.2	4.8
Jun	70° / 64°	3.3	8.8	0	14.9	6.7
Jul	76° / 71°	3.0	8.6	0	14.6	7.2
Aug	76° / 70°	3.7	9.3	0	13.6	7.2
Sep	71° / 65°	3.7	8.8	0	12.3	6.9
Oct	62° / 55°	4.3	9	0	10.9	5.5
Nov	53° / 46°	3.6	8.7	0.3	9.7	3.2
Dec	45° / 37°	4.6	10.6	2.2	9.1	1.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 56%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	47	46	46	45	45	44	44	43	42	41	41	41	41	41	41	40	40	40	42	43	43	43	44	44	44	45	45	45	46	47	46
Cloudier (%)	53	54	54	55	55	56	56	57	58	59	59	59	59	59	59	60	60	60	58	57	57	57	56	56	56	55	55	55	54	53	54

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	43	57
9	42	58
10	41	59
11	41	59
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	42	58
20	43	57
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	45	55
27	45	55
28	45	55
29	46	54
30	47	53
31	46	54

Chance of precipitation in December

Any precipitationSnow

Shirley gets around 4.6 in of rain and snow over 10.6 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 36% on the wettest days, and about 2 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	34	34	35	35	35	36	36	36	36	36	36	35	35	34	34	34	33	33	33	32	32	32	32	31	32	32	32	32	32	32	32
Snow chance (%)	3	4	4	5	5	6	6	7	7	7	8	8	8	8	8	8	8	8	7	7	7	7	7	8	8	8	8	9	9	10	10

	Rain chance (%)	Snow chance (%)
1	34	3
2	34	4
3	35	4
4	35	5
5	35	5
6	36	6
7	36	6
8	36	7
9	36	7
10	36	7
11	36	8
12	35	8
13	35	8
14	34	8
15	34	8
16	34	8
17	33	8
18	33	8
19	33	7
20	32	7
21	32	7
22	32	7
23	32	7
24	31	8
25	32	8
26	32	8
27	32	8
28	32	9
29	32	9
30	32	10
31	32	10

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	99	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in December

Winds average 14 mph in December.

Across December, daily wind ranges from about 14 mph on the calmest days to 14 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (mph)	Feels
1	14	breezy
2	14	breezy
3	14	breezy
4	14	breezy
5	14	breezy
6	14	breezy
7	14	breezy
8	14	breezy
9	14	breezy
10	14	breezy
11	14	breezy
12	14	breezy
13	14	breezy
14	14	breezy
15	14	breezy
16	14	breezy
17	14	breezy
18	14	breezy
19	14	breezy
20	14	breezy
21	14	breezy
22	14	breezy
23	14	breezy
24	14	breezy
25	14	breezy
26	14	breezy
27	14	breezy
28	14	breezy
29	14	breezy
30	14	breezy
31	14	breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:03 AM to 7:21 AM, and sunset from 4:20 PM to 4:28 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.3	9.3	9.3	9.2	9.2	9.2	9.2	9.2	9.2	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1	9.1
Sunrise (AM)	7:03	7:04	7:04	7:05	7:06	7:07	7:08	7:09	7:10	7:11	7:11	7:12	7:13	7:14	7:14	7:15	7:16	7:16	7:17	7:17	7:18	7:18	7:19	7:19	7:20	7:20	7:20	7:21	7:21	7:21	7:21
Sunset (PM)	4:20	4:20	4:19	4:19	4:19	4:19	4:19	4:19	4:19	4:19	4:19	4:19	4:20	4:20	4:20	4:20	4:21	4:21	4:21	4:22	4:22	4:23	4:23	4:24	4:24	4:25	4:25	4:26	4:27	4:27	4:28

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.3	7:03	4:20
2	9.3	7:04	4:20
3	9.3	7:04	4:19
4	9.2	7:05	4:19
5	9.2	7:06	4:19
6	9.2	7:07	4:19
7	9.2	7:08	4:19
8	9.2	7:09	4:19
9	9.2	7:10	4:19
10	9.1	7:11	4:19
11	9.1	7:11	4:19
12	9.1	7:12	4:19
13	9.1	7:13	4:20
14	9.1	7:14	4:20
15	9.1	7:14	4:20
16	9.1	7:15	4:20
17	9.1	7:16	4:21
18	9.1	7:16	4:21
19	9.1	7:17	4:21
20	9.1	7:17	4:22
21	9.1	7:18	4:22
22	9.1	7:18	4:23
23	9.1	7:19	4:23
24	9.1	7:19	4:24
25	9.1	7:20	4:24
26	9.1	7:20	4:25
27	9.1	7:20	4:25
28	9.1	7:21	4:26
29	9.1	7:21	4:27
30	9.1	7:21	4:27
31	9.1	7:21	4:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.74 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 6.55 kWh/m² in June across the year — December's 1.74 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	1.9	1.9	1.9	1.8	1.8	1.8	1.8	1.8	1.8	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.8	1.8	1.8	1.8	1.8
Level	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	1.9	Dim
2	1.9	Dim
3	1.9	Dim
4	1.8	Dim
5	1.8	Dim
6	1.8	Dim
7	1.8	Dim
8	1.8	Dim
9	1.8	Dim
10	1.7	Dim
11	1.7	Dim
12	1.7	Dim
13	1.7	Dim
14	1.7	Dim
15	1.7	Dim
16	1.7	Dim
17	1.7	Dim
18	1.7	Dim
19	1.7	Dim
20	1.7	Dim
21	1.7	Dim
22	1.7	Dim
23	1.7	Dim
24	1.7	Dim
25	1.7	Dim
26	1.7	Dim
27	1.8	Dim
28	1.8	Dim
29	1.8	Dim
30	1.8	Dim
31	1.8	Dim

Planning a trip in December

Hazard calendar for Shirley

In seasonPeak

None of Shirley's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Shirley sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Shirley?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.1

Sightseeing

9th-best month of the year

0.0

Beach & pool

9th-best month of the year

December is a weaker month for outdoor sightseeing in Shirley.

What to pack for Shirley in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Shirley sees daytime highs around 45°F and nights near 37°F. Pack a warm layer. Worth having: a heavy coat, rain gear and a windbreaker. About 11 days see rain.

a warm layera heavy coatrain geara windbreaker

Sea temperature near Shirley in December

The nearest coast averages about 49°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 12 mi away) is warmest in August at about 73°F and coldest in February near 40°F.

It's comfortable for a long swim from Jul 4 to Sep 22 — about 2.7 months when the water holds above 68°F.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	44	40	41	45	53	64	71	73	69	63	56	49
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Refreshing	Refreshing	Refreshing	Cool	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	44	Bracing
Feb	40	Bracing
Mar	41	Bracing
Apr	45	Bracing
May	53	Bracing
Jun	64	Cool
Jul	71	Refreshing
Aug	73	Refreshing
Sep	69	Refreshing
Oct	63	Cool
Nov	56	Bracing
Dec	49	Bracing

UV index in Shirley in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shirley peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	5	6	7	8	8	6	6	3	2	1
Level	Low	Moderate	Moderate	High	Very high	Very high	Very high	High	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	5	Moderate
Apr	6	High
May	7	Very high
Jun	8	Very high
Jul	8	Very high
Aug	6	High
Sep	6	High
Oct	3	Moderate
Nov	2	Moderate
Dec	1	Low

Air quality in Shirley in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Shirley is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	12	14	15	16	16	17	14	11	9	8	8
Level	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	12	Good
Mar	14	Moderate
Apr	15	Moderate
May	16	Moderate
Jun	16	Moderate
Jul	17	Moderate
Aug	14	Moderate
Sep	11	Good
Oct	9	Good
Nov	8	Good
Dec	8	Good

Location & terrain

Where is Shirley?

Shirley sits at 40.8°N, 72.9°W, 52 ft above sea level, in United States. The nearest listed city is Mastic, 1.2 mi away.

Topography around Shirley

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Shirley.

Within 2 miles, the terrain around Shirley has only modest variations in elevation — a maximum elevation change of 118 ft around an average of 49 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 335 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,010 ft.

The land around Shirley is covered by trees (67%) within 2 miles, trees (47%) and water (34%) within 10 miles, and water (58%) and trees (32%) within 50 miles.

2 miles

118 ft

trees 67%

10 miles

335 ft

trees 47%

50 miles

1,010 ft

water 58%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← November Shirley year-round climate January →Best places to visit in December

December weather nearby: Mastic 1.2 mi · Medford 6.8 mi · East Patchogue 6.8 mi · Coram 8.7 mi · Farmingville 8.7 mi · Holtsville 9.3 mi · Selden 9.9 mi · Holbrook 11 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Shirley (40.8015°, -72.8676°, elevation 52 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	49	41
2	49	41
3	48	41
4	48	40
5	48	40
6	47	40
7	47	39
8	47	39
9	47	39
10	46	38
11	46	38
12	46	38
13	46	38
14	46	38
15	45	37
16	45	37
17	45	37
18	45	37
19	45	37
20	44	36
21	44	36
22	44	36
23	44	36
24	44	36
25	44	35
26	43	35
27	43	35
28	43	35
29	43	35
30	43	34
31	42	34

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	43	57
9	42	58
10	41	59
11	41	59
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	42	58
20	43	57
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	45	55
27	45	55
28	45	55
29	46	54
30	47	53
31	46	54

	Rain chance (%)	Snow chance (%)
1	34	3
2	34	4
3	35	4
4	35	5
5	35	5
6	36	6
7	36	6
8	36	7
9	36	7
10	36	7
11	36	8
12	35	8
13	35	8
14	34	8
15	34	8
16	34	8
17	33	8
18	33	8
19	33	7
20	32	7
21	32	7
22	32	7
23	32	7
24	31	8
25	32	8
26	32	8
27	32	8
28	32	9
29	32	9
30	32	10
31	32	10

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.9	Dim
2	1.9	Dim
3	1.9	Dim
4	1.8	Dim
5	1.8	Dim
6	1.8	Dim
7	1.8	Dim
8	1.8	Dim
9	1.8	Dim
10	1.7	Dim
11	1.7	Dim
12	1.7	Dim
13	1.7	Dim
14	1.7	Dim
15	1.7	Dim
16	1.7	Dim
17	1.7	Dim
18	1.7	Dim
19	1.7	Dim
20	1.7	Dim
21	1.7	Dim
22	1.7	Dim
23	1.7	Dim
24	1.7	Dim
25	1.7	Dim
26	1.7	Dim
27	1.8	Dim
28	1.8	Dim
29	1.8	Dim
30	1.8	Dim
31	1.8	Dim

	Avg high (°F)	Avg low (°F)
1	49	41
2	49	41
3	48	41
4	48	40
5	48	40
6	47	40
7	47	39
8	47	39
9	47	39
10	46	38
11	46	38
12	46	38
13	46	38
14	46	38
15	45	37
16	45	37
17	45	37
18	45	37
19	45	37
20	44	36
21	44	36
22	44	36
23	44	36
24	44	36
25	44	35
26	43	35
27	43	35
28	43	35
29	43	35
30	43	34
31	42	34

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	43	57
9	42	58
10	41	59
11	41	59
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	42	58
20	43	57
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	45	55
27	45	55
28	45	55
29	46	54
30	47	53
31	46	54

	Rain chance (%)	Snow chance (%)
1	34	3
2	34	4
3	35	4
4	35	5
5	35	5
6	36	6
7	36	6
8	36	7
9	36	7
10	36	7
11	36	8
12	35	8
13	35	8
14	34	8
15	34	8
16	34	8
17	33	8
18	33	8
19	33	7
20	32	7
21	32	7
22	32	7
23	32	7
24	31	8
25	32	8
26	32	8
27	32	8
28	32	9
29	32	9
30	32	10
31	32	10

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.9	Dim
2	1.9	Dim
3	1.9	Dim
4	1.8	Dim
5	1.8	Dim
6	1.8	Dim
7	1.8	Dim
8	1.8	Dim
9	1.8	Dim
10	1.7	Dim
11	1.7	Dim
12	1.7	Dim
13	1.7	Dim
14	1.7	Dim
15	1.7	Dim
16	1.7	Dim
17	1.7	Dim
18	1.7	Dim
19	1.7	Dim
20	1.7	Dim
21	1.7	Dim
22	1.7	Dim
23	1.7	Dim
24	1.7	Dim
25	1.7	Dim
26	1.7	Dim
27	1.8	Dim
28	1.8	Dim
29	1.8	Dim
30	1.8	Dim
31	1.8	Dim

	Avg high (°F)	Avg low (°F)
1	49	41
2	49	41
3	48	41
4	48	40
5	48	40
6	47	40
7	47	39
8	47	39
9	47	39
10	46	38
11	46	38
12	46	38
13	46	38
14	46	38
15	45	37
16	45	37
17	45	37
18	45	37
19	45	37
20	44	36
21	44	36
22	44	36
23	44	36
24	44	36
25	44	35
26	43	35
27	43	35
28	43	35
29	43	35
30	43	34
31	42	34

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	43	57
9	42	58
10	41	59
11	41	59
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	42	58
20	43	57
21	43	57
22	43	57
23	44	56
24	44	56
25	44	56
26	45	55
27	45	55
28	45	55
29	46	54
30	47	53
31	46	54

	Rain chance (%)	Snow chance (%)
1	34	3
2	34	4
3	35	4
4	35	5
5	35	5
6	36	6
7	36	6
8	36	7
9	36	7
10	36	7
11	36	8
12	35	8
13	35	8
14	34	8
15	34	8
16	34	8
17	33	8
18	33	8
19	33	7
20	32	7
21	32	7
22	32	7
23	32	7
24	31	8
25	32	8
26	32	8
27	32	8
28	32	9
29	32	9
30	32	10
31	32	10

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Solar energy (kWh/m²)	Level
1	1.9	Dim
2	1.9	Dim
3	1.9	Dim
4	1.8	Dim
5	1.8	Dim
6	1.8	Dim
7	1.8	Dim
8	1.8	Dim
9	1.8	Dim
10	1.7	Dim
11	1.7	Dim
12	1.7	Dim
13	1.7	Dim
14	1.7	Dim
15	1.7	Dim
16	1.7	Dim
17	1.7	Dim
18	1.7	Dim
19	1.7	Dim
20	1.7	Dim
21	1.7	Dim
22	1.7	Dim
23	1.7	Dim
24	1.7	Dim
25	1.7	Dim
26	1.7	Dim
27	1.8	Dim
28	1.8	Dim
29	1.8	Dim
30	1.8	Dim
31	1.8	Dim