Climate and monthly weather forecastBellvue, CO
Climate and monthly weather forecast
Weather in January
January, like December, in Bellvue, Colorado, is another cold winter month, with an average temperature fluctuating between 20.3°F (-6.5°C) and 37.9°F (3.3°C). Bellvue notes an average high-temperature of a still icy 37.9°F (3.3°C) in January, hardly diverging from December. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Bellvue, Colorado, with an average temperature varying between 19.4°F (-7°C) and 37.8°F (3.2°C). Welcoming February, Bellvue notes an average high-temperature of a still icy 37.8°F (3.2°C), nearly consistent with January's 37.9°F (3.3°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Bellvue, Colorado, with an average temperature varying between 28.2°F (-2.1°C) and 48.4°F (9.1°C). In March, the average high-temperature increases from an icy 37.8°F (3.2°C) in February to a chilly 48.4°F (9.1°C). Weather in March »Weather in April
April is a fresh spring month in Bellvue, Colorado, with an average temperature varying between 32.9°F (0.5°C) and 54.5°F (12.5°C). A soft shift in the average high-temperature is noticeable in April, transitioning from a chilly 48.4°F (9.1°C) in March to a cool 54.5°F (12.5°C). Weather in April »Weather in May
May, the last month of the spring in Bellvue, is an enjoyable month, with an average temperature varying between 40.6°F (4.8°C) and 63.3°F (17.4°C). The onset of May brings a minor temperature shift, with the average high-temperature moving from a fresh 54.5°F (12.5°C) in April to a refreshing 63.3°F (17.4°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Bellvue, Colorado, with an average temperature ranging between min 52.2°F (11.2°C) and max 78.3°F (25.7°C). June signals a clear temperature escalation, with average high-temperatures advancing from May's enjoyable 63.3°F (17.4°C) to a warm 78.3°F (25.7°C). Weather in June »Weather in July
July, like June, in Bellvue, Colorado, is a moderately hot summer month, with an average temperature varying between 56.8°F (13.8°C) and 82.9°F (28.3°C). Bellvue's warmest temperatures are experienced in July, with average high temperatures of 82.9°F (28.3°C) and lows of 56.8°F (13.8°C). For July, the heat index is estimated at 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 Bellvue, Colorado, with an average temperature ranging between min 55.2°F (12.9°C) and max 81.5°F (27.5°C). Bellvue's weather in August displays an average high-temperature of a still moderately hot 81.5°F (27.5°C), showing minor disparity from July's 82.9°F (28.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Bellvue, Colorado, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 74.5°F (23.6°C). Bellvue in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 81.5°F (27.5°C) to a still warm 74.5°F (23.6°C). Weather in September »Weather in October
October, the same as September, in Bellvue, Colorado, is a moderate autumn month, with an average temperature varying between 58.3°F (14.6°C) and 37°F (2.8°C). Bellvue's weather in October is marked by a clear decrease in the average high-temperature, moving down from September's warm 74.5°F (23.6°C) to a mild 58.3°F (14.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Bellvue, Colorado, with an average temperature varying between 27.7°F (-2.4°C) and 46.9°F (8.3°C). November shows a mild decline in the average high-temperature, falling from October's mild 58.3°F (14.6°C) to a chilly 46.9°F (8.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Bellvue, Colorado, with an average temperature varying between 36.1°F (2.3°C) and 18.7°F (-7.4°C). In Bellvue, December is the month with the lowest recorded average temperatures, measuring a high of 36.1°F (2.3°C) and a low of 18.7°F (-7.4°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bellvue, CO
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (36.1°F).
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure
Bellvue, CO
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Bellvue, CO
- Average wind speed in January:
7.2mph - Average wind speed in February:
7mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6mph - Average wind speed in October:
6.6mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Bellvue, CO
The month with the highest relative humidity is February (67%).
The months with the lowest relative humidity are June, August and September (45%).
Average rainfall
Bellvue, CO
- Average rainfall in January:
0.12" - Average rainfall in February:
0.31" - Average rainfall in March:
0.51" - Average rainfall in April:
0.75" - Average rainfall in May:
1.5" - Average rainfall in June:
0.83"
- Average rainfall in July:
1.38" - Average rainfall in August:
0.75" - Average rainfall in September:
0.55" - Average rainfall in October:
0.43" - Average rainfall in November:
0.35" - Average rainfall in December:
0.16"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is January (0.12").
Average rainfall days
Bellvue, CO
- Average rainfall days in January:
1.2 days - Average rainfall days in February:
1.6 days - Average rainfall days in March:
4.2 days - Average rainfall days in April:
6.1 days - Average rainfall days in May:
12.1 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
6.3 days - Average rainfall days in October:
3.6 days - Average rainfall days in November:
1.7 days - Average rainfall days in December:
1.5 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is January (1.2 days).
Average snowfall
Bellvue, CO
- Average snowfall in January:
0.91" - Average snowfall in February:
2.56" - Average snowfall in March:
2.2" - Average snowfall in April:
3.27" - Average snowfall in May:
1.22" - Average snowfall in June:
0"
The month with the highest snowfall is April (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Bellvue, CO
- Average snowfall days in January:
2.8 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
1.1 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:
2 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bellvue, CO
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 54min - Average sunshine in April:
10h and 36min - Average sunshine in May:
10h and 48min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 36min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 18min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days
Bellvue, CO
- Average sunshine days in January:
27.5 days - Average sunshine days in February:
23.5 days - Average sunshine days in March:
24.7 days - Average sunshine days in April:
21.5 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
18.9 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
21.7 days - Average sunshine days in October:
24.8 days - Average sunshine days in November:
26.1 days - Average sunshine days in December:
27.5 days
The months with the most sunshine days are January and December (27.5 days).
The month with the least sunshine days is July (14.9 days).
Average UV index
Bellvue, CO
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
Bellvue, CO
The months with the most cloud cover are February, April and May (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility
Bellvue, CO
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).





