Portsmouth weather in December

In December, Portsmouth sees average daytime highs of 39°F and overnight lows near 28°F, with 4.6 in of precipitation across 10.8 wet days and about 8.9 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 42°F in the first days to 36°F by the end. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is Portsmouth's 8th-clearest and 2nd-windiest month. For the whole year in context, see Portsmouth's year-round climate.

Daytime high: 39°; 10th warmest
Overnight low: 28°; 3rd coldest
Precipitation: 4.6 in; 10.8 wet days
Daylight: 8 h 48 min; 7:14 AM – 4:04 PM
Cloud cover: 60%; 8th clearest
Wind: 11 mph; 2nd windiest
Solar energy: 1.54 kWh/m²
Travel score: 0.1; out of 10

Portsmouth is city in Rockingham County, New Hampshire, United States.

Density: 494/km²; people per km²
Founded: 1630

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

← November Portsmouth 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 42°F in the first days to 36°F by the end.

A typical December day in Portsmouth reaches about 39°F in the afternoon and slips back to 28°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 28°F and 50°F. Set against its neighbours, December runs about 9°F cooler than November and about 5°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)	43	43	42	42	42	41	41	40	40	40	40	39	39	39	39	38	38	38	38	38	38	37	37	37	37	37	37	36	36	36	36
Avg low (°F)	33	33	32	32	31	31	31	31	30	30	29	29	29	29	28	28	28	28	28	27	27	27	27	26	26	26	26	25	25	25	25

	Avg high (°F)	Avg low (°F)
1	43	33
2	43	33
3	42	32
4	42	32
5	42	31
6	41	31
7	41	31
8	40	31
9	40	30
10	40	30
11	40	29
12	39	29
13	39	29
14	39	29
15	39	28
16	38	28
17	38	28
18	38	28
19	38	28
20	38	27
21	38	27
22	37	27
23	37	27
24	37	26
25	37	26
26	37	26
27	37	26
28	36	25
29	36	25
30	36	25
31	36	25

How December really feels in Portsmouth

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 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

1 feel bitter (≤ 14°F)

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

Portsmouth weather by month

How December compares with the rest of the year at a glance. December is the 10th-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	34° / 22°	3.6	9.9	6.7	9.2	0.0
Feb	35° / 23°	3.4	9.1	6	10.2	0.0
Mar	41° / 30°	4.5	11.2	5.2	11.6	0.2
Apr	51° / 40°	4.2	10.6	1.3	13.1	2.4
May	60° / 49°	3.3	10.5	0	14.4	4.7
Jun	69° / 58°	3.6	10.6	0	15.1	6.3
Jul	75° / 65°	3.1	10.6	0	14.9	6.9
Aug	74° / 64°	3.2	8.8	0	13.8	7.2
Sep	68° / 57°	3.4	8.5	0	12.3	6.6
Oct	58° / 47°	4.4	9.9	0.2	10.8	4.5
Nov	48° / 37°	3.8	9.7	1.2	9.5	1.8
Dec	39° / 28°	4.6	10.8	4.9	8.9	0.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 55%.

	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	46	47	46	45	45	45	44	43	44	42	42	42	43	42	42	42	44	44	44	45	46	46	47	48	48	49	49	49
Cloudier (%)	53	54	54	54	53	54	55	55	55	56	57	56	58	58	58	57	58	58	58	56	56	56	55	54	54	53	52	52	51	51	51

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	46	54
5	47	53
6	46	54
7	45	55
8	45	55
9	45	55
10	44	56
11	43	57
12	44	56
13	42	58
14	42	58
15	42	58
16	43	57
17	42	58
18	42	58
19	42	58
20	44	56
21	44	56
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	48	52
28	48	52
29	49	51
30	49	51
31	49	51

Chance of precipitation in December

Any precipitationSnow

Portsmouth gets around 4.6 in of rain and snow over 10.8 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 35% and peaks near 36% on the wettest days, and about 5 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	34	34	34	34	35	35	35	35	36	36	36	36	36	36	36	35	35	35	35	35	34	34	34	34	34	34	34	34	34
Snow chance (%)	10	11	12	12	13	13	14	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	18	18	18

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

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 (%)	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	100	100	100	100	100	100

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

Wind in December

Winds average 11 mph in December.

Across December, daily wind ranges from about 11 mph on the calmest days to 11 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 06 min at the start of December to 8 h 54 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 7:01 AM to 7:20 AM, and sunset from 4:04 PM to 4:12 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)	9.1	9.0	9.0	9.0	9.0	9.0	8.9	8.9	8.9	8.9	8.9	8.9	8.9	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.8	8.9
Sunrise (AM)	7:01	7:02	7:03	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	7:19	7:20	7:20	7:20	7:20	7:20
Sunset (PM)	4:04	4:04	4:04	4:04	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:04	4:04	4:04	4:04	4:04	4:05	4:05	4:05	4:06	4:06	4:07	4:07	4:08	4:08	4:09	4:10	4:10	4:11	4:12

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.1	7:01	4:04
2	9.0	7:02	4:04
3	9.0	7:03	4:04
4	9.0	7:04	4:04
5	9.0	7:05	4:03
6	9.0	7:06	4:03
7	8.9	7:07	4:03
8	8.9	7:08	4:03
9	8.9	7:09	4:03
10	8.9	7:10	4:03
11	8.9	7:11	4:03
12	8.9	7:11	4:03
13	8.9	7:12	4:04
14	8.8	7:13	4:04
15	8.8	7:14	4:04
16	8.8	7:14	4:04
17	8.8	7:15	4:04
18	8.8	7:16	4:05
19	8.8	7:16	4:05
20	8.8	7:17	4:05
21	8.8	7:17	4:06
22	8.8	7:18	4:06
23	8.8	7:18	4:07
24	8.8	7:19	4:07
25	8.8	7:19	4:08
26	8.8	7:19	4:08
27	8.8	7:20	4:09
28	8.8	7:20	4:10
29	8.8	7:20	4:10
30	8.8	7:20	4:11
31	8.9	7:20	4:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.54 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 6.11 kWh/m² in July across the year — December's 1.54 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)	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.6	1.6	1.6	1.6	1.6	1.6	1.6
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	1.6	Dim
2	1.6	Dim
3	1.6	Dim
4	1.6	Dim
5	1.6	Dim
6	1.6	Dim
7	1.6	Dim
8	1.6	Dim
9	1.6	Dim
10	1.5	Dim
11	1.5	Dim
12	1.5	Dim
13	1.5	Dim
14	1.5	Dim
15	1.5	Dim
16	1.5	Dim
17	1.5	Dim
18	1.5	Dim
19	1.5	Dim
20	1.5	Dim
21	1.5	Dim
22	1.5	Dim
23	1.5	Dim
24	1.5	Dim
25	1.6	Dim
26	1.6	Dim
27	1.6	Dim
28	1.6	Dim
29	1.6	Dim
30	1.6	Dim
31	1.6	Dim

Planning a trip in December

Hazard calendar for Portsmouth

In seasonPeak

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

Portsmouth 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 Portsmouth?

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

0.1

Sightseeing

10th-best month of the year

0.0

Beach & pool

8th-best month of the year

December is a weaker month for outdoor sightseeing in Portsmouth.

What to pack for Portsmouth in December

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

In December, Portsmouth sees daytime highs around 39°F and nights near 28°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Portsmouth in December

The nearest coast averages about 45°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 65°F and coldest in March near 38°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	42	39	38	42	49	57	63	65	62	55	49	45
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	42	Bracing
Feb	39	Bracing
Mar	38	Bracing
Apr	42	Bracing
May	49	Bracing
Jun	57	Bracing
Jul	63	Cool
Aug	65	Cool
Sep	62	Cool
Oct	55	Bracing
Nov	49	Bracing
Dec	45	Bracing

UV index in Portsmouth 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 Portsmouth peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	4	5	7	7	7	4	6	3	2	1
Level	Low	Moderate	Moderate	High	High	High	Very high	Moderate	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Moderate
Mar	4	Moderate
Apr	5	High
May	7	High
Jun	7	High
Jul	7	Very high
Aug	4	Moderate
Sep	6	High
Oct	3	Moderate
Nov	2	Moderate
Dec	1	Low

Location & terrain

Where is Portsmouth?

Portsmouth sits at 43.1°N, 70.8°W, 20 ft above sea level, in United States. The nearest listed city is Dover, 9.9 mi away.

Topography around Portsmouth

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

Within 2 miles, the terrain around Portsmouth has only modest variations in elevation — a maximum elevation change of 161 ft around an average of 39 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 430 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,454 ft.

The land around Portsmouth is covered by trees (45%), water (22%) and artificial surfaces (21%) within 2 miles, trees (49%) and water (36%) within 10 miles, and trees (61%) and water (32%) within 50 miles.

2 miles

161 ft

trees 45%

10 miles

430 ft

trees 49%

50 miles

2,454 ft

trees 61%

treesgrasslandartificial surfaceswaterwetland

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

December weather nearby: Dover 9.9 mi · Amesbury 17 mi · Rochester 19 mi · Newburyport 19 mi · Sanford 25 mi · Haverhill 26 mi · Salem 30 mi · Derry Village 31 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 Portsmouth (43.077°, -70.7577°, elevation 20 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. 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	43	33
2	43	33
3	42	32
4	42	32
5	42	31
6	41	31
7	41	31
8	40	31
9	40	30
10	40	30
11	40	29
12	39	29
13	39	29
14	39	29
15	39	28
16	38	28
17	38	28
18	38	28
19	38	28
20	38	27
21	38	27
22	37	27
23	37	27
24	37	26
25	37	26
26	37	26
27	37	26
28	36	25
29	36	25
30	36	25
31	36	25

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	46	54
5	47	53
6	46	54
7	45	55
8	45	55
9	45	55
10	44	56
11	43	57
12	44	56
13	42	58
14	42	58
15	42	58
16	43	57
17	42	58
18	42	58
19	42	58
20	44	56
21	44	56
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	48	52
28	48	52
29	49	51
30	49	51
31	49	51

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

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

	Solar energy (kWh/m²)	Level
1	1.6	Dim
2	1.6	Dim
3	1.6	Dim
4	1.6	Dim
5	1.6	Dim
6	1.6	Dim
7	1.6	Dim
8	1.6	Dim
9	1.6	Dim
10	1.5	Dim
11	1.5	Dim
12	1.5	Dim
13	1.5	Dim
14	1.5	Dim
15	1.5	Dim
16	1.5	Dim
17	1.5	Dim
18	1.5	Dim
19	1.5	Dim
20	1.5	Dim
21	1.5	Dim
22	1.5	Dim
23	1.5	Dim
24	1.5	Dim
25	1.6	Dim
26	1.6	Dim
27	1.6	Dim
28	1.6	Dim
29	1.6	Dim
30	1.6	Dim
31	1.6	Dim

	Avg high (°F)	Avg low (°F)
1	43	33
2	43	33
3	42	32
4	42	32
5	42	31
6	41	31
7	41	31
8	40	31
9	40	30
10	40	30
11	40	29
12	39	29
13	39	29
14	39	29
15	39	28
16	38	28
17	38	28
18	38	28
19	38	28
20	38	27
21	38	27
22	37	27
23	37	27
24	37	26
25	37	26
26	37	26
27	37	26
28	36	25
29	36	25
30	36	25
31	36	25

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	46	54
5	47	53
6	46	54
7	45	55
8	45	55
9	45	55
10	44	56
11	43	57
12	44	56
13	42	58
14	42	58
15	42	58
16	43	57
17	42	58
18	42	58
19	42	58
20	44	56
21	44	56
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	48	52
28	48	52
29	49	51
30	49	51
31	49	51

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

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

	Solar energy (kWh/m²)	Level
1	1.6	Dim
2	1.6	Dim
3	1.6	Dim
4	1.6	Dim
5	1.6	Dim
6	1.6	Dim
7	1.6	Dim
8	1.6	Dim
9	1.6	Dim
10	1.5	Dim
11	1.5	Dim
12	1.5	Dim
13	1.5	Dim
14	1.5	Dim
15	1.5	Dim
16	1.5	Dim
17	1.5	Dim
18	1.5	Dim
19	1.5	Dim
20	1.5	Dim
21	1.5	Dim
22	1.5	Dim
23	1.5	Dim
24	1.5	Dim
25	1.6	Dim
26	1.6	Dim
27	1.6	Dim
28	1.6	Dim
29	1.6	Dim
30	1.6	Dim
31	1.6	Dim

	Avg high (°F)	Avg low (°F)
1	43	33
2	43	33
3	42	32
4	42	32
5	42	31
6	41	31
7	41	31
8	40	31
9	40	30
10	40	30
11	40	29
12	39	29
13	39	29
14	39	29
15	39	28
16	38	28
17	38	28
18	38	28
19	38	28
20	38	27
21	38	27
22	37	27
23	37	27
24	37	26
25	37	26
26	37	26
27	37	26
28	36	25
29	36	25
30	36	25
31	36	25

	Clearer (%)	Cloudier (%)
1	47	53
2	46	54
3	46	54
4	46	54
5	47	53
6	46	54
7	45	55
8	45	55
9	45	55
10	44	56
11	43	57
12	44	56
13	42	58
14	42	58
15	42	58
16	43	57
17	42	58
18	42	58
19	42	58
20	44	56
21	44	56
22	44	56
23	45	55
24	46	54
25	46	54
26	47	53
27	48	52
28	48	52
29	49	51
30	49	51
31	49	51

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

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

	Solar energy (kWh/m²)	Level
1	1.6	Dim
2	1.6	Dim
3	1.6	Dim
4	1.6	Dim
5	1.6	Dim
6	1.6	Dim
7	1.6	Dim
8	1.6	Dim
9	1.6	Dim
10	1.5	Dim
11	1.5	Dim
12	1.5	Dim
13	1.5	Dim
14	1.5	Dim
15	1.5	Dim
16	1.5	Dim
17	1.5	Dim
18	1.5	Dim
19	1.5	Dim
20	1.5	Dim
21	1.5	Dim
22	1.5	Dim
23	1.5	Dim
24	1.5	Dim
25	1.6	Dim
26	1.6	Dim
27	1.6	Dim
28	1.6	Dim
29	1.6	Dim
30	1.6	Dim
31	1.6	Dim