Annual mean 8°C · wettest around June · prevailing wind SW
Warmest
26.2 °C
Coldest
-6.0 °C
Wettest
53%
Windiest
5.1 m/s
Prevailing
SW
3.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Tomah over the whole year is 8°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -9°C. Tomah has no sharply defined rainy season: the chance of rain on a given day runs from 26% in December, the driest month, to 46% in June, the wettest. Winds in Tomah are highest in April, averaging 3.4 m/s (12 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Tomah come in July, when the sky is typically 38% covered; December is the cloudiest month, at 60%.
Month by month Tomah climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-5°C
-9°C
-10°C
27%
59%
2.6 m/s
0
0
0
February
-2°C
-9°C
-8°C
27%
45%
2.8 m/s
0
0
5
March
5°C
-2°C
-1°C
37%
51%
3.1 m/s
2
0
15
April
11°C
2°C
6°C
40%
55%
3.4 m/s
13
0
39
May
19°C
10°C
16°C
43%
48%
2.6 m/s
48
9
63
June
24°C
16°C
23°C
46%
42%
2.3 m/s
63
34
41
July
26°C
17°C
27°C
42%
38%
1.9 m/s
54
54
22
August
25°C
15°C
25°C
39%
43%
1.8 m/s
65
44
32
September
22°C
12°C
20°C
41%
41%
1.9 m/s
65
23
57
October
14°C
6°C
10°C
36%
49%
2.4 m/s
27
2
55
November
5°C
-1°C
0°C
33%
54%
2.7 m/s
6
0
19
December
-2°C
-5°C
-7°C
26%
60%
2.7 m/s
0
0
3
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Tomah weather by season
Year round, Tomah has days of about -5°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -9°C to 17°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around June and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Tomah weather in winterDecember to February
High -3°CLow -8°CRain 27%
Winter in Tomah has typical daily highs of about -3°C and lows of about -8°C, with a 27% chance of rain on a given day.
Tomah weather in springMarch to May
High 11°CLow 3°CRain 40%
Spring in Tomah has typical daily highs of about 11°C and lows of about 3°C, with a 40% chance of rain on a given day.
Tomah weather in summerJune to August
High 25°CLow 16°CRain 42%
Summer in Tomah has typical daily highs of about 25°C and lows of about 16°C, with a 42% chance of rain on a given day.
Tomah weather in autumnSeptember to November
High 13°CLow 5°CRain 36%
Autumn in Tomah has typical daily highs of about 13°C and lows of about 5°C, with a 36% chance of rain on a given day.
When is the rainy season in Tomah?
Tomah has no sharply defined rainy season: the chance of rain on a given day runs from 26% in December, the driest month, to 46% in June, the wettest.
What time of year is Tomah windiest?
Winds in Tomah are highest in April, averaging 3.4 m/s (12 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Tomah year round?
The average temperature in Tomah over the whole year is 8°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -9°C.