Climate and monthly weather forecastArvada, WY
Climate and monthly weather forecast
Weather in January
January in Arvada, Wyoming, is a cold winter month, with an average temperature ranging between max 32°F (0°C) and min 17.1°F (-8.3°C). The onset of January marks an average high-temperature of a wintry 32°F (0°C), hardly differing from December's 31.6°F (-0.2°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Arvada, Wyoming, with an average temperature varying between 31.5°F (-0.3°C) and 16.2°F (-8.8°C). February is the month that records the lowest temperatures, with averages ranging from a high of 31.5°F (-0.3°C) to a low of 16.2°F (-8.8°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Arvada, Wyoming, with an average temperature ranging between max 44.6°F (7°C) and min 28.6°F (-1.9°C). As March sets, the average high-temperature shows an increase, moving up from a freezing cold 31.5°F (-0.3°C) in February to a frosty 44.6°F (7°C). Weather in March »Weather in April
April is a fresh spring month in Arvada, Wyoming, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 52.7°F (11.5°C). A gentle upsurge in temperatures occurs as March gives way to April, with average highs shifting from a frosty 44.6°F (7°C) to a cool 52.7°F (11.5°C). Weather in April »Weather in May
May, the last month of the spring in Arvada, is a refreshing month, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 63°F (17.2°C). Entering May, Arvada sees a temperature rise, with the average high-temperature advancing from April's cool 52.7°F (11.5°C) to an enjoyable 63°F (17.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Arvada, Wyoming, with an average temperature ranging between max 75.7°F (24.3°C) and min 55°F (12.8°C). June's onset is marked by a temperature increase, moving from an enjoyable 63°F (17.2°C) in May to a warm 75.7°F (24.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Arvada, Wyoming, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 84.7°F (29.3°C). July, with its high-temperature average of 84.7°F (29.3°C) and a low-temperature average of 63.5°F (17.5°C), is the warmest month. July's mean heat index is computed to be 84.2°F (29°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Arvada, Wyoming, with an average temperature ranging between max 82.8°F (28.2°C) and min 62.8°F (17.1°C). The average high-temperature during August registers at a still moderately hot 82.8°F (28.2°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
September, the first month of the autumn in Arvada, is also a moderately hot month, with an average temperature varying between 73.8°F (23.2°C) and 54.3°F (12.4°C). The move into September indicates a reduction in the average high-temperature, down from August's moderately hot 82.8°F (28.2°C) to a still warm 73.8°F (23.2°C). Weather in September »Weather in October
October, the same as September, in Arvada, Wyoming, is another mild autumn month, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 56.3°F (13.5°C). As Arvada welcomes October, the average high-temperature witnesses a distinct drop, moving from a warm 73.8°F (23.2°C) in September to a mild 56.3°F (13.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Arvada, Wyoming, with temperature in the range of an average low of 27.3°F (-2.6°C) and an average high of 43.7°F (6.5°C). November indicates a shift in the average high-temperature, from October's moderate 56.3°F (13.5°C) to a frosty 43.7°F (6.5°C). Weather in November »Weather in December
December, the first month of the winter in Arvada, is still a freezing cold month, with temperature in the range of an average high of 31.6°F (-0.2°C) and an average low of 17.4°F (-8.1°C). Onset of December comes with a temperature decline, the average high falling from a frosty 43.7°F (6.5°C) in November to a subzero cold 31.6°F (-0.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Arvada, WY
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is February (31.5°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure
Arvada, WY
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
29.98"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Arvada, WY
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.7mph - Average wind speed in March:
8.5mph - Average wind speed in April:
9.4mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.3mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.5mph - Average wind speed in September:
8.1mph - Average wind speed in October:
8.6mph - Average wind speed in November:
8mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity
Arvada, WY
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (38%).
Average rainfall
Arvada, WY
- Average rainfall in January:
0.24" - Average rainfall in February:
0.39" - Average rainfall in March:
0.83" - Average rainfall in April:
1.85" - Average rainfall in May:
2.8" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.79" - Average rainfall in August:
0.91" - Average rainfall in September:
0.83" - Average rainfall in October:
0.94" - Average rainfall in November:
0.59" - Average rainfall in December:
0.31"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days
Arvada, WY
- Average rainfall days in January:
3 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
10.7 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
7.6 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (2.5 days).
Average snowfall
Arvada, WY
- Average snowfall in January:
1.22" - Average snowfall in February:
2.56" - Average snowfall in March:
2.83" - Average snowfall in April:
3.46" - Average snowfall in May:
2.01" - Average snowfall in June:
0.12"
The month with the highest snowfall is April (3.46").
The months with the least snowfall are July and August (0").
Average snowfall days
Arvada, WY
- Average snowfall days in January:
6 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
6 days - Average snowfall days in May:
1.8 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.4 days - Average snowfall days in October:
3 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is November (7.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Arvada, WY
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
6h and 12min - Average sunshine in March:
8h and 24min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 54min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days
Arvada, WY
- Average sunshine days in January:
23.5 days - Average sunshine days in February:
20.1 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.6 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (11 days).
Average UV index
Arvada, WY
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
Arvada, WY
The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility
Arvada, WY
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





