Climate and monthly weather forecastBelmont, WA
Climate and monthly weather forecast
Weather in January
January, like December, in Belmont, Washington, is another cold winter month, with an average temperature varying between 26.1°F (-3.3°C) and 36.1°F (2.3°C). January's advent denotes a minor fluctuation in the average high-temperature to a still cold 36.1°F (2.3°C) from December's 34.7°F (1.5°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Belmont, Washington, with an average temperature varying between 28°F (-2.2°C) and 39°F (3.9°C). The transition from January to February brings an average high-temperature of a still wintry 39°F (3.9°C), barely different from January's 36.1°F (2.3°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Belmont, Washington, with an average temperature varying between 46.9°F (8.3°C) and 33.1°F (0.6°C). In Belmont, the average high-temperature in March slightly rises, from an icy 39°F (3.9°C) in February, to a frosty 46.9°F (8.3°C). Weather in March »Weather in April
April is a fresh spring month in Belmont, Washington, with an average temperature ranging between max 55°F (12.8°C) and min 37°F (2.8°C). The onset of April marks a slight increase in the average high-temperature, moving from a frosty 46.9°F (8.3°C) in March to a cool 55°F (12.8°C). Weather in April »Weather in May
May, the last month of the spring in Belmont, is an enjoyable month, with an average temperature varying between 64.4°F (18°C) and 43°F (6.1°C). As Belmont welcomes May, the average high-temperature sees a rise, transitioning from a fresh 55°F (12.8°C) in April to a comfortable 64.4°F (18°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Belmont, Washington, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 48.6°F (9.2°C). With the onset of June, Belmont's average high-temperature sees a modest rise, moving from May's refreshing 64.4°F (18°C) to a pleasant 71.1°F (21.7°C). Weather in June »Weather in July
July in Belmont, Washington, is a moderately hot summer month, with an average temperature fluctuating between 83.3°F (28.5°C) and 57°F (13.9°C). July brings a rise in the average high-temperature, transitioning from June's pleasant 71.1°F (21.7°C) to a warm 83.3°F (28.5°C). Weather in July »Weather in August
August, the last month of the summer in Belmont, is also a moderately hot month, with temperature in the range of an average high of 83.5°F (28.6°C) and an average low of 60.4°F (15.8°C). Belmont's warmest month, August, generally records average temperatures ranging from a high of 83.5°F (28.6°C) to a low of 60.4°F (15.8°C). Weather in August »Weather in September
September, the first month of the autumn in Belmont, is also an agreeable month, with an average temperature ranging between min 52.9°F (11.6°C) and max 73.2°F (22.9°C). September comes with a drop in the average high-temperature, falling from August's moderately hot 83.5°F (28.6°C) to a pleasant 73.2°F (22.9°C). Weather in September »Weather in October
October, the same as September, in Belmont, Washington, is another refreshing autumn month, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 57.6°F (14.2°C). With the onset of October, Belmont experiences a distinct temperature drop, with the average high-temperature reducing from September's agreeable 73.2°F (22.9°C) to a refreshing 57.6°F (14.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Belmont, Washington, with an average temperature fluctuating between 43.9°F (6.6°C) and 32.9°F (0.5°C). Belmont's November weather shows a moderate shift in high-temperatures, falling from October's moderate 57.6°F (14.2°C) to a frosty 43.9°F (6.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Belmont, Washington, with an average temperature ranging between min 24.6°F (-4.1°C) and max 34.7°F (1.5°C). The coldest temperatures occur during December, when averages reach a peak of 34.7°F (1.5°C) and a low of 24.6°F (-4.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Belmont, WA
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (34.7°F).
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure
Belmont, WA
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Belmont, WA
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.3mph - Average wind speed in March:
8mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6.6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Belmont, WA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (37%).
Average rainfall
Belmont, WA
- Average rainfall in January:
1.73" - Average rainfall in February:
1.54" - Average rainfall in March:
1.61" - Average rainfall in April:
1.42" - Average rainfall in May:
1.61" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.39" - Average rainfall in September:
0.47" - Average rainfall in October:
1.26" - Average rainfall in November:
1.38" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Belmont, WA
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
12.5 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
4.5 days - Average rainfall days in August:
5.1 days - Average rainfall days in September:
6.4 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
11.7 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (4.5 days).
Average snowfall
Belmont, WA
- Average snowfall in January:
5.12" - Average snowfall in February:
6.69" - Average snowfall in March:
2.95" - Average snowfall in April:
0.75" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Belmont, WA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
9.6 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
2.2 days - Average snowfall days in May:
0.3 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:
0.1 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
4 days - Average snowfall days in December:
9.6 days
The months with the highest number of snowfall days are February and December (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Belmont, 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 30min - 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 36min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 24min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 18min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days
Belmont, WA
- Average sunshine days in January:
15 days - Average sunshine days in February:
12.2 days - Average sunshine days in March:
14 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
16.1 days - Average sunshine days in June:
17.8 days
- Average sunshine days in July:
24.6 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
22.4 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is February (12.2 days).
Average UV index
Belmont, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Belmont, WA
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility
Belmont, WA
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





