Climate and monthly weather forecastYelm, WA
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Yelm, Washington, with an average temperature fluctuating between 45.1°F (7.3°C) and 34.2°F (1.2°C). Yelm records a slight change with January's average high-temperatures adjusting to a still frosty 45.1°F (7.3°C) from December's 43°F (6.1°C). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Yelm, Washington, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 46.2°F (7.9°C). The arrival of February brings an average high-temperature of a still frosty 46.2°F (7.9°C), nearly identical to January's 45.1°F (7.3°C). Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Yelm, Washington, with an average temperature fluctuating between 50.7°F (10.4°C) and 35.2°F (1.8°C). Yelm greets March with an average high-temperature of a cool 50.7°F (10.4°C), marking a slight deviation from the preceding month. Weather in March »Weather in April
April is a mild spring month in Yelm, Washington, with an average temperature ranging between min 37.8°F (3.2°C) and max 56.3°F (13.5°C). Yelm's transition into April is noticed by a slight rise in the average high-temperature, advancing from a cool 50.7°F (10.4°C) in March to a mild 56.3°F (13.5°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Yelm, Washington, with an average temperature varying between 64.9°F (18.3°C) and 41.9°F (5.5°C). Yelm's transition into May sees a mild rise in the average high-temperature, edging from a refreshing 56.3°F (13.5°C) in April to a comfortable 64.9°F (18.3°C). Weather in May »Weather in June
June, the first month of the summer in Yelm, is a pleasant month, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 69.4°F (20.8°C). Shifting into June, Yelm records an average high-temperature of an agreeable 69.4°F (20.8°C), presenting minor fluctuations compared to the previous month. Weather in June »Weather in July
July in Yelm, Washington, is a warm summer month, with an average temperature fluctuating between 49.1°F (9.5°C) and 77°F (25°C). As Yelm transitions into July, the average high-temperature is observed to slightly rise from an agreeable 69.4°F (20.8°C) in June to a moderately hot 77°F (25°C). Weather in July »Weather in August
August, the last month of the summer in Yelm, is another warm month, with an average temperature varying between 77.5°F (25.3°C) and 50.5°F (10.3°C). August, marked by an average high-temperature of 77.5°F (25.3°C) and a low-temperature of 50.5°F (10.3°C), is the warmest month. Weather in August »Weather in September
September, the first month of the autumn in Yelm, is still a pleasant month, with an average temperature fluctuating between 47.5°F (8.6°C) and 70.3°F (21.3°C). September heralds a minor drop in average high-temperature, sliding from August's warm 77.5°F (25.3°C) to an agreeable 70.3°F (21.3°C). Weather in September »Weather in October
October, the same as September, in Yelm, Washington, is a moderate autumn month, with an average temperature ranging between max 59.2°F (15.1°C) and min 42.4°F (5.8°C). Yelm in October demonstrates a small temperature transition, adjusting from an average high of an agreeable 70.3°F (21.3°C) in September to a mild 59.2°F (15.1°C). Weather in October »Weather in November
November, the last month of the autumn in Yelm, is also a frosty month, with an average temperature varying between 37.8°F (3.2°C) and 48.9°F (9.4°C). Onset of November comes with a temperature decline, the average high falling from a refreshing 59.2°F (15.1°C) in October to a chilly 48.9°F (9.4°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Yelm, Washington, with an average temperature ranging between max 43°F (6.1°C) and min 32.9°F (0.5°C). December, on average, is the coldest month, registering a high temperature of 43°F (6.1°C) and a low of 32.9°F (0.5°C). Weather in December »Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, February, November and December, with an average relative humidity of 87%, are most humid months.
In Yelm, during the entire year, the rain falls for 178.1 days and collects up to 33.82" (859mm) of precipitation.
January through April, November and December are months with snowfall.
In Yelm, Washington, during the entire year, snow falls for 9 days and aggregates up to 6.38" (162mm) of snow.
January and December, with an average of 4h of sunshine, are months with the least sunshine.
The months with the lowest UV index in Yelm are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 3.2 days and accumulates 2.4" (61mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
May through October are months without snowfall.
June has the longest days of the year in Yelm, with an average of 15h and 48min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
July is the least humid month, with an average relative humidity of 70%.
The month with the least rainfall in Yelm is July, when the rain falls for 6.4 days and typically collects 0.39" (10mm) of precipitation.
Yelm's warmest month, August, generally records average temperatures ranging from a high of 77.5°F (25.3°C) to a low of 50.5°F (10.3°C).
With an average of 10.6h of sunshine, August has the most sunshine of the year.
In Yelm, December registers the lowest temperatures, averaging 43°F (6.1°C) at the peak and 32.9°F (0.5°C) at the lowest.
December is the month with the most rainfall. Rain falls for 18.9 days and accumulates 5.28" (134mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 36min of daylight.
Average temperature
Yelm, WA
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (43°F).
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure
Yelm, WA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.04"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Yelm, WA
- Average wind speed in January:
4.9mph - Average wind speed in February:
4.8mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.1mph - Average wind speed in June:
4.1mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.6mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Yelm, WA
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Yelm, WA
- Average rainfall in January:
4.92" - Average rainfall in February:
3.31" - Average rainfall in March:
3.58" - Average rainfall in April:
2.8" - Average rainfall in May:
1.93" - Average rainfall in June:
1.34"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.55" - Average rainfall in September:
1.54" - Average rainfall in October:
3.98" - Average rainfall in November:
4.21" - Average rainfall in December:
5.28"
The wettest month (with the highest rainfall) is December (5.28").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days
Yelm, WA
- Average rainfall days in January:
17.8 days - Average rainfall days in February:
16.8 days - Average rainfall days in March:
20.2 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
6.4 days - Average rainfall days in August:
5.3 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
16.3 days - Average rainfall days in November:
19.4 days - Average rainfall days in December:
18.9 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall
Yelm, WA
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Yelm, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.1 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Yelm, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 36min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 18min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days
Yelm, WA
- Average sunshine days in January:
11.1 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
15.5 days
- Average sunshine days in July:
22.8 days - Average sunshine days in August:
23.4 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
9.3 days - Average sunshine days in December:
10.2 days
The month with the most sunshine days is August (23.4 days).
The months with the least sunshine days are February and March (8.8 days).
Average UV index
Yelm, WA
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Yelm, WA
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Yelm, WA
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
