Walla Walla weather in December

In December, Walla Walla sees average daytime highs of 38°F and overnight lows near 28°F, with 3.6 in of precipitation across 14.3 wet days and about 8.5 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 38°F through the month. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 42 min at the start of December to 8 h 30 min by month's end. Set against the rest of the year, December is Walla Walla's 11th-clearest and 5th-windiest month. For the whole year in context, see Walla Walla's year-round climate.

Daytime high: 38°; 12th warmest
Overnight low: 28°; 1st coldest
Precipitation: 3.6 in; 14.3 wet days
Daylight: 8 h 30 min; 7:36 AM – 4:03 PM
Cloud cover: 70%; 11th clearest
Wind: 6 mph; 5th windiest
Solar energy: 1.28 kWh/m²
Travel score: 0.0; out of 10

Walla Walla is city in Walla Walla County, Washington, United States.

Density: 970/km²; people per km²
Founded: 1856

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

← November Walla Walla 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

Day-to-day highs hold fairly steady near 38°F through the month.

A typical December day in Walla Walla reaches about 38°F in the afternoon and slips back to 28°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 29°F and 47°F. Set against its neighbours, December runs about 8°F cooler than November and on par with 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)	40	40	40	39	39	39	39	39	38	38	38	38	38	38	38	38	38	38	38	38	38	38	38	38	37	37	37	37	37	37	37
Avg low (°F)	29	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	27	27	27	27	27	27	27	27	27	27	27	27	27	27

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

How December really feels in Walla Walla

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

wind chill below the day's low

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

Walla Walla weather by month

How December compares with the rest of the year at a glance. December is the 12th-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	39° / 29°	3.3	14.2	8.6	8.9	0.0
Feb	44° / 30°	2.6	12	6.3	10	0.6
Mar	50° / 34°	2.9	13.4	5	11.6	2.2
Apr	58° / 38°	2.2	11.5	1.7	13.3	4.0
May	66° / 45°	2.1	9.7	0.2	14.7	6.2
Jun	74° / 50°	1.3	6.3	0	15.5	7.5
Jul	84° / 57°	0.3	2	0	15.2	7.3
Aug	83° / 56°	0.4	2.1	0	14	7.5
Sep	73° / 49°	0.8	4.1	0	12.3	8.1
Oct	60° / 40°	2.1	8.8	0.3	10.7	5.0
Nov	46° / 33°	3.3	13.6	5.1	9.2	1.1
Dec	38° / 28°	3.6	14.3	9.2	8.5	0.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 69%.

	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 (%)	34	35	34	34	34	33	32	32	31	31	30	29	29	28	28	28	28	29	29	29	31	31	31	32	32	33	33	32	32	32	32
Cloudier (%)	66	65	66	66	66	67	68	68	69	69	70	71	71	72	72	72	72	71	71	71	69	69	69	68	68	67	67	68	68	68	68

	Clearer (%)	Cloudier (%)
1	34	66
2	35	65
3	34	66
4	34	66
5	34	66
6	33	67
7	32	68
8	32	68
9	31	69
10	31	69
11	30	70
12	29	71
13	29	71
14	28	72
15	28	72
16	28	72
17	28	72
18	29	71
19	29	71
20	29	71
21	31	69
22	31	69
23	31	69
24	32	68
25	32	68
26	33	67
27	33	67
28	32	68
29	32	68
30	32	68
31	32	68

Chance of precipitation in December

Any precipitationSnow

Walla Walla gets around 3.6 in of rain and snow over 14.3 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 46% and peaks near 49% on the wettest days, and about 9 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 (%)	47	47	47	47	48	48	48	48	48	49	49	49	49	49	49	48	48	47	46	46	45	45	44	44	43	43	43	43	44	44	44
Snow chance (%)	26	27	27	27	28	28	28	29	29	29	30	30	31	31	31	32	32	32	32	32	32	31	31	31	30	30	30	30	30	30	30

	Rain chance (%)	Snow chance (%)
1	47	26
2	47	27
3	47	27
4	47	27
5	48	28
6	48	28
7	48	28
8	48	29
9	48	29
10	49	29
11	49	30
12	49	30
13	49	31
14	49	31
15	49	31
16	48	32
17	48	32
18	47	32
19	46	32
20	46	32
21	45	32
22	45	31
23	44	31
24	44	31
25	43	30
26	43	30
27	43	30
28	43	30
29	44	30
30	44	30
31	44	30

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 6 mph in December.

Across December, daily wind ranges from about 6 mph on the calmest days to 6 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)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 42 min at the start of December to 8 h 30 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 7:22 AM to 7:42 AM, and sunset from 4:04 PM to 4:11 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)	8.7	8.7	8.7	8.6	8.6	8.6	8.6	8.6	8.5	8.5	8.5	8.5	8.5	8.5	8.5	8.5	8.5	8.4	8.4	8.4	8.4	8.4	8.4	8.4	8.4	8.4	8.5	8.5	8.5	8.5	8.5
Sunrise (AM)	7:22	7:23	7:24	7:25	7:26	7:27	7:28	7:29	7:30	7:31	7:32	7:33	7:34	7:34	7:35	7:36	7:36	7:37	7:38	7:38	7:39	7:39	7:40	7:40	7:41	7:41	7:41	7:41	7:42	7:42	7:42
Sunset (PM)	4:04	4:04	4:04	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:03	4:04	4:04	4:04	4:05	4:05	4:05	4:06	4:06	4:07	4:08	4:08	4:09	4:10	4:10	4:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	8.7	7:22	4:04
2	8.7	7:23	4:04
3	8.7	7:24	4:04
4	8.6	7:25	4:03
5	8.6	7:26	4:03
6	8.6	7:27	4:03
7	8.6	7:28	4:03
8	8.6	7:29	4:03
9	8.5	7:30	4:03
10	8.5	7:31	4:03
11	8.5	7:32	4:03
12	8.5	7:33	4:03
13	8.5	7:34	4:03
14	8.5	7:34	4:03
15	8.5	7:35	4:03
16	8.5	7:36	4:03
17	8.5	7:36	4:04
18	8.4	7:37	4:04
19	8.4	7:38	4:04
20	8.4	7:38	4:05
21	8.4	7:39	4:05
22	8.4	7:39	4:05
23	8.4	7:40	4:06
24	8.4	7:40	4:06
25	8.4	7:41	4:07
26	8.4	7:41	4:08
27	8.5	7:41	4:08
28	8.5	7:41	4:09
29	8.5	7:42	4:10
30	8.5	7:42	4:10
31	8.5	7:42	4:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.28 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 7.84 kWh/m² in July across the year — December's 1.28 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)	1.4	1.4	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3	1.3
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	1.4	Dim
2	1.4	Dim
3	1.3	Dim
4	1.3	Dim
5	1.3	Dim
6	1.3	Dim
7	1.3	Dim
8	1.3	Dim
9	1.3	Dim
10	1.3	Dim
11	1.3	Dim
12	1.3	Dim
13	1.2	Dim
14	1.2	Dim
15	1.2	Dim
16	1.2	Dim
17	1.2	Dim
18	1.2	Dim
19	1.2	Dim
20	1.2	Dim
21	1.2	Dim
22	1.3	Dim
23	1.3	Dim
24	1.3	Dim
25	1.3	Dim
26	1.3	Dim
27	1.3	Dim
28	1.3	Dim
29	1.3	Dim
30	1.3	Dim
31	1.3	Dim

Planning a trip in December

Hazard calendar for Walla Walla

In seasonPeak

In December, Walla Walla sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Walla Walla's rainy season runs October–May, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Walla Walla?

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

0.0

Sightseeing

11th-best month of the year

0.0

Beach & pool

9th-best month of the year

December is a weaker month for outdoor sightseeing in Walla Walla.

What to pack for Walla Walla in December

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

In December, Walla Walla sees daytime highs around 38°F and nights near 28°F. Pack a warm layer, a heavy coat and rain gear. About 14 days see rain.

a warm layera heavy coatrain gear

UV index in Walla Walla 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 Walla Walla peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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	9	6	5	4	1	1
Level	Low	Low	Moderate	Moderate	Very high	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	4	Moderate
Apr	5	Moderate
May	7	Very high
Jun	7	High
Jul	9	Very high
Aug	6	High
Sep	5	Moderate
Oct	4	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Walla Walla 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 Walla Walla is worst in August — around 29 µg/m³ PM2.5 (moderate), about 4.4× the cleanest month (December, 7 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)	7	8	11	11	9	9	16	29	20	12	12	7
Level	Good	Good	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	7	Good
Feb	8	Good
Mar	11	Good
Apr	11	Good
May	9	Good
Jun	9	Good
Jul	16	Moderate
Aug	29	Moderate
Sep	20	Moderate
Oct	12	Moderate
Nov	12	Good
Dec	7	Good

Location & terrain

Where is Walla Walla?

Walla Walla sits at 46.1°N, 118.3°W, 942 ft above sea level, in United States. The nearest listed city is Pendleton, 35 mi away.

Topography around Walla Walla

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

Within 2 miles, the terrain around Walla Walla has only modest variations in elevation — a maximum elevation change of 272 ft around an average of 945 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,333 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,115 ft.

The land around Walla Walla is covered by artificial surfaces (34%), trees (26%) and grassland (23%) within 2 miles, cropland (67%) and grassland (23%) within 10 miles, and grassland (44%), cropland (29%) and trees (24%) within 50 miles.

2 miles

272 ft

artificial surfaces 34%

10 miles

3,333 ft

cropland 67%

50 miles

6,115 ft

grassland 44%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

December weather nearby: Pendleton 35 mi · Pasco 39 mi · Kennewick 39 mi · Tri-Cities 43 mi · Richland 48 mi · Hermiston 48 mi · Lewiston 68 mi · Lewiston Orchards 69 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 Walla Walla (46.0646°, -118.343°, elevation 942 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. 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	40	29
2	40	28
3	40	28
4	39	28
5	39	28
6	39	28
7	39	28
8	39	28
9	38	28
10	38	28
11	38	28
12	38	28
13	38	28
14	38	28
15	38	28
16	38	28
17	38	28
18	38	27
19	38	27
20	38	27
21	38	27
22	38	27
23	38	27
24	38	27
25	37	27
26	37	27
27	37	27
28	37	27
29	37	27
30	37	27
31	37	27

	Clearer (%)	Cloudier (%)
1	34	66
2	35	65
3	34	66
4	34	66
5	34	66
6	33	67
7	32	68
8	32	68
9	31	69
10	31	69
11	30	70
12	29	71
13	29	71
14	28	72
15	28	72
16	28	72
17	28	72
18	29	71
19	29	71
20	29	71
21	31	69
22	31	69
23	31	69
24	32	68
25	32	68
26	33	67
27	33	67
28	32	68
29	32	68
30	32	68
31	32	68

	Rain chance (%)	Snow chance (%)
1	47	26
2	47	27
3	47	27
4	47	27
5	48	28
6	48	28
7	48	28
8	48	29
9	48	29
10	49	29
11	49	30
12	49	30
13	49	31
14	49	31
15	49	31
16	48	32
17	48	32
18	47	32
19	46	32
20	46	32
21	45	32
22	45	31
23	44	31
24	44	31
25	43	30
26	43	30
27	43	30
28	43	30
29	44	30
30	44	30
31	44	30

	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	1.4	Dim
2	1.4	Dim
3	1.3	Dim
4	1.3	Dim
5	1.3	Dim
6	1.3	Dim
7	1.3	Dim
8	1.3	Dim
9	1.3	Dim
10	1.3	Dim
11	1.3	Dim
12	1.3	Dim
13	1.2	Dim
14	1.2	Dim
15	1.2	Dim
16	1.2	Dim
17	1.2	Dim
18	1.2	Dim
19	1.2	Dim
20	1.2	Dim
21	1.2	Dim
22	1.3	Dim
23	1.3	Dim
24	1.3	Dim
25	1.3	Dim
26	1.3	Dim
27	1.3	Dim
28	1.3	Dim
29	1.3	Dim
30	1.3	Dim
31	1.3	Dim

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

	Clearer (%)	Cloudier (%)
1	34	66
2	35	65
3	34	66
4	34	66
5	34	66
6	33	67
7	32	68
8	32	68
9	31	69
10	31	69
11	30	70
12	29	71
13	29	71
14	28	72
15	28	72
16	28	72
17	28	72
18	29	71
19	29	71
20	29	71
21	31	69
22	31	69
23	31	69
24	32	68
25	32	68
26	33	67
27	33	67
28	32	68
29	32	68
30	32	68
31	32	68

	Rain chance (%)	Snow chance (%)
1	47	26
2	47	27
3	47	27
4	47	27
5	48	28
6	48	28
7	48	28
8	48	29
9	48	29
10	49	29
11	49	30
12	49	30
13	49	31
14	49	31
15	49	31
16	48	32
17	48	32
18	47	32
19	46	32
20	46	32
21	45	32
22	45	31
23	44	31
24	44	31
25	43	30
26	43	30
27	43	30
28	43	30
29	44	30
30	44	30
31	44	30

	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	1.4	Dim
2	1.4	Dim
3	1.3	Dim
4	1.3	Dim
5	1.3	Dim
6	1.3	Dim
7	1.3	Dim
8	1.3	Dim
9	1.3	Dim
10	1.3	Dim
11	1.3	Dim
12	1.3	Dim
13	1.2	Dim
14	1.2	Dim
15	1.2	Dim
16	1.2	Dim
17	1.2	Dim
18	1.2	Dim
19	1.2	Dim
20	1.2	Dim
21	1.2	Dim
22	1.3	Dim
23	1.3	Dim
24	1.3	Dim
25	1.3	Dim
26	1.3	Dim
27	1.3	Dim
28	1.3	Dim
29	1.3	Dim
30	1.3	Dim
31	1.3	Dim

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

	Clearer (%)	Cloudier (%)
1	34	66
2	35	65
3	34	66
4	34	66
5	34	66
6	33	67
7	32	68
8	32	68
9	31	69
10	31	69
11	30	70
12	29	71
13	29	71
14	28	72
15	28	72
16	28	72
17	28	72
18	29	71
19	29	71
20	29	71
21	31	69
22	31	69
23	31	69
24	32	68
25	32	68
26	33	67
27	33	67
28	32	68
29	32	68
30	32	68
31	32	68

	Rain chance (%)	Snow chance (%)
1	47	26
2	47	27
3	47	27
4	47	27
5	48	28
6	48	28
7	48	28
8	48	29
9	48	29
10	49	29
11	49	30
12	49	30
13	49	31
14	49	31
15	49	31
16	48	32
17	48	32
18	47	32
19	46	32
20	46	32
21	45	32
22	45	31
23	44	31
24	44	31
25	43	30
26	43	30
27	43	30
28	43	30
29	44	30
30	44	30
31	44	30

	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	1.4	Dim
2	1.4	Dim
3	1.3	Dim
4	1.3	Dim
5	1.3	Dim
6	1.3	Dim
7	1.3	Dim
8	1.3	Dim
9	1.3	Dim
10	1.3	Dim
11	1.3	Dim
12	1.3	Dim
13	1.2	Dim
14	1.2	Dim
15	1.2	Dim
16	1.2	Dim
17	1.2	Dim
18	1.2	Dim
19	1.2	Dim
20	1.2	Dim
21	1.2	Dim
22	1.3	Dim
23	1.3	Dim
24	1.3	Dim
25	1.3	Dim
26	1.3	Dim
27	1.3	Dim
28	1.3	Dim
29	1.3	Dim
30	1.3	Dim
31	1.3	Dim