Climate and monthly weather forecastAmherst, CO
Climate and monthly weather forecast
Weather in January
January, like December, in Amherst, Colorado, is a wintry winter month, with an average temperature fluctuating between 40.1°F (4.5°C) and 23.9°F (-4.5°C). Amherst experiences a subtle adjustment in high-temperatures to a still wintry 40.1°F (4.5°C) with the onset of January, maintaining near parity with December's 39.2°F (4°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Amherst, Colorado, with an average temperature fluctuating between 24.1°F (-4.4°C) and 41.4°F (5.2°C). As February unfolds, the average high-temperature reaches a still cold 41.4°F (5.2°C), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
March, the first month of the spring in Amherst, is a cool month, with an average temperature ranging between min 33.8°F (1°C) and max 54.1°F (12.3°C). As March arrives, a rise in the average high-temperature is observed, moving from a cold 41.4°F (5.2°C) in February to a cool 54.1°F (12.3°C). Weather in March »Weather in April
April in Amherst, Colorado, is a refreshing spring month, with an average temperature fluctuating between 60.6°F (15.9°C) and 40.3°F (4.6°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a cool 54.1°F (12.3°C) in March to a moderate 60.6°F (15.9°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Amherst, Colorado, with an average temperature fluctuating between 49.1°F (9.5°C) and 69.4°F (20.8°C). May showcases a minor temperature ascent, adjusting from April's mild 60.6°F (15.9°C) to a pleasant 69.4°F (20.8°C). Weather in May »Weather in June
June, the first month of the summer in Amherst, is a moderately hot month, with an average temperature ranging between min 61.3°F (16.3°C) and max 83.3°F (28.5°C). Amherst's weather in June shows a rise in the average high-temperature, moving up from May's agreeable 69.4°F (20.8°C) to a moderately hot 83.3°F (28.5°C). Weather in June »Weather in July
July in Amherst, Colorado, is a tropical summer month, with an average temperature varying between 66°F (18.9°C) and 88.7°F (31.5°C). July brings the highest temperatures, with an average high of 88.7°F (31.5°C) and an average low of 66°F (18.9°C). July's average heat index is computed to be a tropical 93.2°F (34°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Amherst, Colorado, with an average temperature ranging between max 86.5°F (30.3°C) and min 63°F (17.2°C). The shift into August reveals an average high-temperature of a still tropical 86.5°F (30.3°C), closely mirroring July's climate. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Amherst, Colorado, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 79.2°F (26.2°C). September marks a gentle change in average high-temperature, declining from August's tropical 86.5°F (30.3°C) to a moderately hot 79.2°F (26.2°C). Weather in September »Weather in October
October, like September, in Amherst, Colorado, is another comfortable autumn month, with an average temperature fluctuating between 43°F (6.1°C) and 62.8°F (17.1°C). As Amherst transitions into October, the average high-temperature shows a marked reduction, decreasing from a moderately hot 79.2°F (26.2°C) in September to an enjoyable 62.8°F (17.1°C). Weather in October »Weather in November
November, the last month of the autumn in Amherst, is also a fresh month, with an average temperature varying between 51.1°F (10.6°C) and 33.3°F (0.7°C). November brings a decrease in the average high-temperature, falling from October's comfortable 62.8°F (17.1°C) to a fresh 51.1°F (10.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Amherst, Colorado, with an average temperature ranging between max 39.2°F (4°C) and min 23.2°F (-4.9°C). In Amherst, December records the lowest average temperatures, peaking at 39.2°F (4°C) and reaching a low of 23.2°F (-4.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Amherst, CO
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (39.2°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure
Amherst, CO
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
29.97"Hg - Average pressure in April:
29.88"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.82"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.11"Hg
The months with the highest atmospheric pressure are January and December (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed
Amherst, CO
- Average wind speed in January:
11.1mph - Average wind speed in February:
10.9mph - Average wind speed in March:
11.4mph - Average wind speed in April:
12.4mph - Average wind speed in May:
11.2mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.7mph - Average wind speed in August:
9.4mph - Average wind speed in September:
10.1mph - Average wind speed in October:
11.1mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.6mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity
Amherst, CO
The months with the highest relative humidity are January and February (66%).
The month with the lowest relative humidity is September (51%).
Average rainfall
Amherst, CO
- Average rainfall in January:
0.43" - Average rainfall in February:
0.63" - Average rainfall in March:
1.1" - Average rainfall in April:
1.93" - Average rainfall in May:
2.99" - Average rainfall in June:
1.93"
- Average rainfall in July:
1.97" - Average rainfall in August:
2.2" - Average rainfall in September:
0.87" - Average rainfall in October:
1.02" - Average rainfall in November:
0.47" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Amherst, CO
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
8.6 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
7.8 days - Average rainfall days in November:
4.2 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is May (17.8 days).
The months with the least rainy days are November and December (4.2 days).
Average snowfall
Amherst, CO
- Average snowfall in January:
2.17" - Average snowfall in February:
3.23" - Average snowfall in March:
2.17" - Average snowfall in April:
2.17" - Average snowfall in May:
0.55" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Amherst, CO
- Average snowfall days in January:
8 days - Average snowfall days in February:
8 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
2.9 days - Average snowfall days in May:
0.8 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:
2.4 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
6.8 days
The months with the highest number of snowfall days are January and February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Amherst, 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:
6h and 24min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 54min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 30min - Average sunshine in August:
11h and 30min - Average sunshine in September:
10h and 0min - Average sunshine in October:
7h and 36min - Average sunshine in November:
6h and 42min - Average sunshine in December:
6h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days
Amherst, CO
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
17.6 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
22.7 days - Average sunshine days in December:
22.1 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is May (10.6 days).
Average UV index
Amherst, CO
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
Amherst, CO
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Amherst, 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).





