Annual mean 11°C · wettest around November · prevailing wind SW
Warmest
23.8 °C
Coldest
5.7 °C
Wettest
42%
Windiest
3.4 m/s
Prevailing
SW
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
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 Yelm over the whole year is 11°C. July is the hottest month, with highs of about 24°C; February is the coldest, with lows of about 3°C. The rainy (wet) season in Yelm runs from September to April, peaking in November with a 42% chance of rain on a given day. The dry season is May to August; July is the driest month, at 14%. Winds in Yelm are highest in February, averaging 2.4 m/s (9 km/h), and lightest in September, at 1.9 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in Yelm come in July, when the sky is typically 35% covered; December is the cloudiest month, at 75%.
Month by month Yelm 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
7°C
3°C
4°C
41%
73%
2.0 m/s
1
0
25
February
7°C
3°C
4°C
37%
71%
2.4 m/s
0
0
26
March
10°C
3°C
6°C
36%
61%
2.3 m/s
5
0
45
April
13°C
6°C
10°C
35%
55%
2.4 m/s
16
1
66
May
17°C
10°C
15°C
26%
54%
2.3 m/s
45
4
80
June
20°C
12°C
18°C
26%
51%
2.3 m/s
66
10
76
July
24°C
14°C
22°C
14%
35%
2.2 m/s
84
26
62
August
24°C
14°C
22°C
19%
37%
2.1 m/s
82
30
57
September
20°C
11°C
18°C
29%
48%
1.9 m/s
76
10
76
October
14°C
8°C
12°C
39%
57%
2.0 m/s
28
1
77
November
9°C
5°C
7°C
42%
69%
2.1 m/s
4
0
45
December
6°C
4°C
3°C
40%
75%
2.1 m/s
0
0
22
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 Yelm weather by season
Year round, Yelm has days of about 6°C at their warmest in December, its coolest month, and 24°C in July, its warmest; the coolest hours of the day run from 3°C to 14°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around November and least likely around July. 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.
Yelm weather in winterDecember to February
High 7°CLow 3°CRain 39%
Winter in Yelm has typical daily highs of about 7°C and lows of about 3°C, with a 39% chance of rain on a given day.
Yelm weather in springMarch to May
High 13°CLow 6°CRain 32%
Spring in Yelm has typical daily highs of about 13°C and lows of about 6°C, with a 32% chance of rain on a given day.
Yelm weather in summerJune to August
High 23°CLow 13°CRain 20%
Summer in Yelm has typical daily highs of about 23°C and lows of about 13°C, with a 20% chance of rain on a given day.
Yelm weather in autumnSeptember to November
High 14°CLow 8°CRain 36%
Autumn in Yelm has typical daily highs of about 14°C and lows of about 8°C, with a 36% chance of rain on a given day.
When is the rainy season in Yelm?
The rainy (wet) season in Yelm runs from September to April, peaking in November with a 42% chance of rain on a given day. The dry season is May to August; July is the driest month, at 14%.
What time of year is Yelm windiest?
Winds in Yelm are highest in February, averaging 2.4 m/s (9 km/h), and lightest in September, at 1.9 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in Yelm year round?
The average temperature in Yelm over the whole year is 11°C. July is the hottest month, with highs of about 24°C; February is the coldest, with lows of about 3°C.