Norrtälje weather in December

In December, Norrtälje sees average daytime highs of 2°C and overnight lows near -2°C, with 46 mm of precipitation across 10.8 wet days and about 5.8 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 3°C in the first days to 1°C by the end. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels dry.

Daylight stretches from about 6 h 12 min at the start of December to 5 h 42 min by month's end. Set against the rest of the year, December is Norrtälje's 10th-clearest and 2nd-windiest month. For the whole year in context, see Norrtälje's year-round climate.

Daytime high: 2°; 10th warmest
Overnight low: -2°; 4th coldest
Precipitation: 46 mm; 10.8 wet days
Daylight: 5 h 36 min; 8:52 AM – 2:31 PM
Cloud cover: 77%; 10th clearest
Wind: 17 km/h; 2nd windiest
Solar energy: 0.19 kWh/m²
Travel score: 0.0; out of 10

Norrtälje is urban area in Norrtälje Municipality, Sweden.

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

← November Norrtälje 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 3°C in the first days to 1°C by the end.

A typical December day in Norrtälje reaches about 2°C in the afternoon and slips back to -2°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 6°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°C 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 (°C)	3	3	3	3	3	3	3	3	3	3	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1
Avg low (°C)	0	0	0	0	0	0	0	-1	-1	-1	-1	-1	-1	-1	-2	-2	-2	-2	-2	-2	-2	-3	-3	-3	-3	-3	-3	-3	-3	-3	-3

	Avg high (°C)	Avg low (°C)
1	3	0
2	3	0
3	3	0
4	3	0
5	3	0
6	3	0
7	3	0
8	3	-1
9	3	-1
10	3	-1
11	2	-1
12	2	-1
13	2	-1
14	2	-1
15	2	-2
16	2	-2
17	2	-2
18	2	-2
19	1	-2
20	1	-2
21	1	-2
22	1	-3
23	1	-3
24	1	-3
25	1	-3
26	1	-3
27	1	-3
28	1	-3
29	1	-3
30	1	-3
31	1	-3

How December really feels in Norrtälje

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Norrtälje weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	0° / -3°	36	8.6	6.5	6.5	0.0
Feb	0° / -4°	29	7.3	7	8.7	0.0
Mar	3° / -2°	29	7.4	5	11.3	0.0
Apr	8° / 1°	31	7.8	2	14.1	1.4
May	13° / 5°	39	8.5	0.1	16.7	3.8
Jun	17° / 10°	59	10	0	18.2	5.5
Jul	20° / 13°	62	10.2	0	17.6	6.4
Aug	20° / 13°	64	11.5	0	15.3	6.0
Sep	15° / 9°	50	9	0	12.6	4.6
Oct	10° / 5°	50	9.7	0.3	9.8	2.0
Nov	5° / 2°	49	10.7	3.1	7.2	0.2
Dec	2° / -2°	46	10.8	6.4	5.8	0.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 75%.

	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 (%)	19	19	19	19	19	19	20	21	21	21	22	23	25	25	26	28	28	28	28	28	28	29	29	29	29	29	28	28	27	27	26
Cloudier (%)	81	81	81	81	81	81	80	79	79	79	78	77	75	75	74	72	72	72	72	72	72	71	71	71	71	71	72	72	73	73	74

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	21	79
9	21	79
10	21	79
11	22	78
12	23	77
13	25	75
14	25	75
15	26	74
16	28	72
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	29	71
23	29	71
24	29	71
25	29	71
26	29	71
27	28	72
28	28	72
29	27	73
30	27	73
31	26	74

Chance of precipitation in December

Any precipitationSnow

Norrtälje gets around 46 mm of rain and snow over 10.8 wet days in December. 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 6 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 (%)	36	36	36	36	36	36	36	36	36	36	36	36	35	35	34	34	34	34	34	34	34	34	34	34	34	34	33	33	33	33	33
Snow chance (%)	15	15	15	15	15	16	16	17	17	18	18	19	19	20	20	21	22	22	23	24	24	24	24	24	24	24	24	24	23	23	22

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

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 17 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h 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 (km/h)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18	18
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 (km/h)	Feels
1	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	17	light breeze
7	17	light breeze
8	17	light breeze
9	17	light breeze
10	17	light breeze
11	17	light breeze
12	17	light breeze
13	17	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	17	light breeze
18	17	light breeze
19	17	light breeze
20	17	light breeze
21	17	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze
31	18	light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 6 h 12 min at the start of December to 5 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over December. Sunrise moves from 8:30 AM to 8:57 AM, and sunset from 2:40 PM to 2:40 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)	6.2	6.1	6.1	6.0	6.0	5.9	5.9	5.9	5.8	5.8	5.8	5.7	5.7	5.7	5.7	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.7	5.7	5.7
Sunrise (AM)	8:30	8:32	8:33	8:35	8:37	8:39	8:40	8:42	8:43	8:45	8:46	8:48	8:49	8:50	8:51	8:52	8:53	8:54	8:55	8:55	8:56	8:56	8:57	8:57	8:57	8:58	8:58	8:58	8:58	8:57	8:57
Sunset (PM)	2:40	2:39	2:38	2:37	2:36	2:35	2:34	2:34	2:33	2:32	2:32	2:31	2:31	2:31	2:31	2:31	2:31	2:31	2:31	2:31	2:32	2:32	2:32	2:33	2:34	2:35	2:35	2:36	2:37	2:38	2:40

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	6.2	8:30	2:40
2	6.1	8:32	2:39
3	6.1	8:33	2:38
4	6.0	8:35	2:37
5	6.0	8:37	2:36
6	5.9	8:39	2:35
7	5.9	8:40	2:34
8	5.9	8:42	2:34
9	5.8	8:43	2:33
10	5.8	8:45	2:32
11	5.8	8:46	2:32
12	5.7	8:48	2:31
13	5.7	8:49	2:31
14	5.7	8:50	2:31
15	5.7	8:51	2:31
16	5.6	8:52	2:31
17	5.6	8:53	2:31
18	5.6	8:54	2:31
19	5.6	8:55	2:31
20	5.6	8:55	2:31
21	5.6	8:56	2:32
22	5.6	8:56	2:32
23	5.6	8:57	2:32
24	5.6	8:57	2:33
25	5.6	8:57	2:34
26	5.6	8:58	2:35
27	5.6	8:58	2:35
28	5.6	8:58	2:36
29	5.7	8:58	2:37
30	5.7	8:57	2:38
31	5.7	8:57	2:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.19 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.19 kWh/m² to a high of 5.93 kWh/m² in June across the year — December's 0.19 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)	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
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	0.2	Dim
2	0.2	Dim
3	0.2	Dim
4	0.2	Dim
5	0.2	Dim
6	0.2	Dim
7	0.2	Dim
8	0.2	Dim
9	0.2	Dim
10	0.2	Dim
11	0.2	Dim
12	0.2	Dim
13	0.2	Dim
14	0.2	Dim
15	0.2	Dim
16	0.2	Dim
17	0.2	Dim
18	0.2	Dim
19	0.2	Dim
20	0.2	Dim
21	0.2	Dim
22	0.2	Dim
23	0.2	Dim
24	0.2	Dim
25	0.2	Dim
26	0.2	Dim
27	0.2	Dim
28	0.2	Dim
29	0.2	Dim
30	0.2	Dim
31	0.2	Dim

Planning a trip in December

Is December a good time to visit Norrtälje?

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

0.0

Sightseeing

9th-best month of the year

0.0

Beach & pool

7th-best month of the year

December is a weaker month for outdoor sightseeing in Norrtälje.

What to pack for Norrtälje in December

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

In December, Norrtälje sees daytime highs around 2°C and nights near -2°C. 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 Norrtälje in December

The nearest coast averages about 4°C 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 18 km away) is warmest in August at about 17°C and coldest in February near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	3	1	2	3	6	11	16	17	14	10	7	4
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	3	Bracing
Feb	1	Bracing
Mar	2	Bracing
Apr	3	Bracing
May	6	Bracing
Jun	11	Bracing
Jul	16	Cool
Aug	17	Cool
Sep	14	Bracing
Oct	10	Bracing
Nov	7	Bracing
Dec	4	Bracing

UV index in Norrtälje in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Norrtälje peaks around June 17 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	4	5	5	4	3	1	0	0
Level	Low	Low	Low	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Low
Apr	3	Moderate
May	4	Moderate
Jun	5	Moderate
Jul	5	Moderate
Aug	4	Moderate
Sep	3	Moderate
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Norrtälje?

Norrtälje sits at 59.8°N, 18.7°E, 13 m above sea level, in Sweden. The nearest listed city is Åkersberga, 38 km away.

Topography around Norrtälje

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Norrtälje.

Within 3 km, the terrain around Norrtälje has only modest variations in elevation — a maximum elevation change of 51 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, only modest variations in elevation — a maximum elevation change of 111 m.

The land around Norrtälje is covered by trees (43%) and grassland (23%) within 3 km, trees (61%) within 16 km, and water (53%) and trees (35%) within 80 km.

3 km

51 m

trees 43%

16 km

68 m

trees 61%

80 km

111 m

water 53%

treesgrasslandcroplandartificial surfaceswaterwetland

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

December weather nearby: Åkersberga 38 km · Vallentuna 43 km · Täby 50 km · Märsta 50 km · Gustavsberg 51 km · Upplands Väsby 52 km · Boo 53 km · Lidingö 54 km

Sweden travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 87% of US; price level, 2025
GDP per capita: $63,133; 2025
Happiness: 7.3 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.1; per 100k, 2023
Road deaths: 3.1; per 100k/yr, 2019
Income group: High; World Bank
English: Very high; EF EPI 609
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 Norrtälje (59.758°, 18.705°, elevation 13 m), 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. 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 (°C)	Avg low (°C)
1	3	0
2	3	0
3	3	0
4	3	0
5	3	0
6	3	0
7	3	0
8	3	-1
9	3	-1
10	3	-1
11	2	-1
12	2	-1
13	2	-1
14	2	-1
15	2	-2
16	2	-2
17	2	-2
18	2	-2
19	1	-2
20	1	-2
21	1	-2
22	1	-3
23	1	-3
24	1	-3
25	1	-3
26	1	-3
27	1	-3
28	1	-3
29	1	-3
30	1	-3
31	1	-3

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	21	79
9	21	79
10	21	79
11	22	78
12	23	77
13	25	75
14	25	75
15	26	74
16	28	72
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	29	71
23	29	71
24	29	71
25	29	71
26	29	71
27	28	72
28	28	72
29	27	73
30	27	73
31	26	74

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

	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	0.2	Dim
2	0.2	Dim
3	0.2	Dim
4	0.2	Dim
5	0.2	Dim
6	0.2	Dim
7	0.2	Dim
8	0.2	Dim
9	0.2	Dim
10	0.2	Dim
11	0.2	Dim
12	0.2	Dim
13	0.2	Dim
14	0.2	Dim
15	0.2	Dim
16	0.2	Dim
17	0.2	Dim
18	0.2	Dim
19	0.2	Dim
20	0.2	Dim
21	0.2	Dim
22	0.2	Dim
23	0.2	Dim
24	0.2	Dim
25	0.2	Dim
26	0.2	Dim
27	0.2	Dim
28	0.2	Dim
29	0.2	Dim
30	0.2	Dim
31	0.2	Dim

	Avg high (°C)	Avg low (°C)
1	3	0
2	3	0
3	3	0
4	3	0
5	3	0
6	3	0
7	3	0
8	3	-1
9	3	-1
10	3	-1
11	2	-1
12	2	-1
13	2	-1
14	2	-1
15	2	-2
16	2	-2
17	2	-2
18	2	-2
19	1	-2
20	1	-2
21	1	-2
22	1	-3
23	1	-3
24	1	-3
25	1	-3
26	1	-3
27	1	-3
28	1	-3
29	1	-3
30	1	-3
31	1	-3

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	21	79
9	21	79
10	21	79
11	22	78
12	23	77
13	25	75
14	25	75
15	26	74
16	28	72
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	29	71
23	29	71
24	29	71
25	29	71
26	29	71
27	28	72
28	28	72
29	27	73
30	27	73
31	26	74

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

	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	0.2	Dim
2	0.2	Dim
3	0.2	Dim
4	0.2	Dim
5	0.2	Dim
6	0.2	Dim
7	0.2	Dim
8	0.2	Dim
9	0.2	Dim
10	0.2	Dim
11	0.2	Dim
12	0.2	Dim
13	0.2	Dim
14	0.2	Dim
15	0.2	Dim
16	0.2	Dim
17	0.2	Dim
18	0.2	Dim
19	0.2	Dim
20	0.2	Dim
21	0.2	Dim
22	0.2	Dim
23	0.2	Dim
24	0.2	Dim
25	0.2	Dim
26	0.2	Dim
27	0.2	Dim
28	0.2	Dim
29	0.2	Dim
30	0.2	Dim
31	0.2	Dim

	Avg high (°C)	Avg low (°C)
1	3	0
2	3	0
3	3	0
4	3	0
5	3	0
6	3	0
7	3	0
8	3	-1
9	3	-1
10	3	-1
11	2	-1
12	2	-1
13	2	-1
14	2	-1
15	2	-2
16	2	-2
17	2	-2
18	2	-2
19	1	-2
20	1	-2
21	1	-2
22	1	-3
23	1	-3
24	1	-3
25	1	-3
26	1	-3
27	1	-3
28	1	-3
29	1	-3
30	1	-3
31	1	-3

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	21	79
9	21	79
10	21	79
11	22	78
12	23	77
13	25	75
14	25	75
15	26	74
16	28	72
17	28	72
18	28	72
19	28	72
20	28	72
21	28	72
22	29	71
23	29	71
24	29	71
25	29	71
26	29	71
27	28	72
28	28	72
29	27	73
30	27	73
31	26	74

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

	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	0.2	Dim
2	0.2	Dim
3	0.2	Dim
4	0.2	Dim
5	0.2	Dim
6	0.2	Dim
7	0.2	Dim
8	0.2	Dim
9	0.2	Dim
10	0.2	Dim
11	0.2	Dim
12	0.2	Dim
13	0.2	Dim
14	0.2	Dim
15	0.2	Dim
16	0.2	Dim
17	0.2	Dim
18	0.2	Dim
19	0.2	Dim
20	0.2	Dim
21	0.2	Dim
22	0.2	Dim
23	0.2	Dim
24	0.2	Dim
25	0.2	Dim
26	0.2	Dim
27	0.2	Dim
28	0.2	Dim
29	0.2	Dim
30	0.2	Dim
31	0.2	Dim