Climate and monthly weather forecastBelfair, WA
Climate and monthly weather forecast
Weather in January
January is a frosty winter month in Belfair, Washington, with an average temperature fluctuating between 44.2°F (6.8°C) and 34.7°F (1.5°C). With January's arrival, Belfair notes an average high-temperature of a chilly 44.2°F (6.8°C), closely following the trend of the preceding month. Weather in January »Weather in February
February, the last month of the winter in Belfair, is also a frosty month, with an average temperature ranging between min 34°F (1.1°C) and max 45.3°F (7.4°C). The onset of February marks an average high-temperature of a still frosty 45.3°F (7.4°C), hardly differing from January's 44.2°F (6.8°C). Weather in February »Weather in March
March, the first month of the spring in Belfair, is a fresh month, with an average temperature ranging between min 36.5°F (2.5°C) and max 50.2°F (10.1°C). Belfair commences March with an average high-temperature of a fresh 50.2°F (10.1°C), maintaining a close resemblance to the previous month. Weather in March »Weather in April
April is a mild spring month in Belfair, Washington, with an average temperature ranging between min 39°F (3.9°C) and max 55.9°F (13.3°C). In Belfair, stepping into April brings a gentle temperature nudge, moving slightly up from March's cool 50.2°F (10.1°C) to a refreshing 55.9°F (13.3°C). Weather in April »Weather in May
May, the last month of the spring in Belfair, is a comfortable month, with an average temperature fluctuating between 64.9°F (18.3°C) and 43.7°F (6.5°C). May sees a temperature increase, moving from a refreshing 55.9°F (13.3°C) in April to an enjoyable 64.9°F (18.3°C). Weather in May »Weather in June
June, the first month of the summer in Belfair, is an agreeable month, with an average temperature fluctuating between 69.4°F (20.8°C) and 47.5°F (8.6°C). May's transformation into June witnesses an average high-temperature of a pleasant 69.4°F (20.8°C), noting a minor change from the preceding month. Weather in June »Weather in July
July is a moderately hot summer month in Belfair, Washington, with an average temperature ranging between min 51.6°F (10.9°C) and max 77.2°F (25.1°C). As June gives way to July, the average high-temperature displays a slight ascent, adjusting from an agreeable 69.4°F (20.8°C) to a warm 77.2°F (25.1°C). Weather in July »Weather in August
August, the last month of the summer in Belfair, is also a moderately hot month, with an average temperature varying between 53.2°F (11.8°C) and 77.4°F (25.2°C). August is the month when Belfair's temperatures reach their peak, with averages of 77.4°F (25.2°C) and lows of 53.2°F (11.8°C). Weather in August »Weather in September
September, the first month of the autumn in Belfair, is still a pleasant month, with an average temperature varying between 49.8°F (9.9°C) and 70.3°F (21.3°C). With the onset of September, Belfair's climate undergoes a slight change as the average high-temperature moves from a warm 77.4°F (25.2°C) in August to a pleasant 70.3°F (21.3°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Belfair, Washington, with an average temperature fluctuating between 58.5°F (14.7°C) and 43.7°F (6.5°C). Onset of October witnesses a reduction in the average high-temperature, falling from an agreeable 70.3°F (21.3°C) in September to a refreshing 58.5°F (14.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Belfair, Washington, with an average temperature varying between 38.5°F (3.6°C) and 48°F (8.9°C). The shift to November brings a decrease in the average high-temperature, falling from a moderate 58.5°F (14.7°C) in October to a frosty 48°F (8.9°C). Weather in November »Weather in December
December, the first month of the winter in Belfair, is also an icy month, with an average temperature varying between 33.8°F (1°C) and 42.3°F (5.7°C). December is the month when Belfair sees the lowest average temperatures, with a high of 42.3°F (5.7°C) and a low of 33.8°F (1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Belfair, WA
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).
Average pressure
Belfair, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.05"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed
Belfair, WA
- Average wind speed in January:
4.9mph - Average wind speed in February:
4.8mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4mph - Average wind speed in June:
3.9mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.4mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity
Belfair, WA
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Belfair, WA
- Average rainfall in January:
4.96" - Average rainfall in February:
2.8" - Average rainfall in March:
3.15" - Average rainfall in April:
2.09" - Average rainfall in May:
1.69" - Average rainfall in June:
1.14"
The wettest month (with the highest rainfall) is December (5").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Belfair, WA
- Average rainfall days in January:
17.6 days - Average rainfall days in February:
15.1 days - Average rainfall days in March:
19.7 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
7.4 days - Average rainfall days in August:
6 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
15.4 days - Average rainfall days in November:
18.9 days - Average rainfall days in December:
18.3 days
The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (6 days).
Average snowfall
Belfair, WA
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Belfair, WA
- Average snowfall days in January:
2.4 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.2 days - Average snowfall days in April:
0.5 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:
0.6 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Belfair, 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 42min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 18min - Average sunshine in December:
3h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days
Belfair, WA
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.1 days - Average sunshine days in May:
15.1 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
21.8 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
10.2 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.7 days).
Average UV index
Belfair, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Belfair, WA
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
Belfair, WA
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, November and December (4mi).





