Climate and monthly weather forecastHamilton, CO
Climate and monthly weather forecast
Weather in January
January, the same as December, in Hamilton, Colorado, is a freezing cold winter month, with an average temperature fluctuating between 10.9°F (-11.7°C) and 28.8°F (-1.8°C). January is the month when Hamilton sees the lowest average temperatures, with a high of 28.8°F (-1.8°C) and a low of 10.9°F (-11.7°C). Weather in January »Weather in February
February, the last month of the winter in Hamilton, is also a subzero cold month, with temperature in the range of an average high of 30.6°F (-0.8°C) and an average low of 13.5°F (-10.3°C). Hamilton marks the onset of February with an average high-temperature of a still freezing cold 30.6°F (-0.8°C), a subtle shift from January's 28.8°F (-1.8°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Hamilton, Colorado, with an average temperature varying between 23.4°F (-4.8°C) and 40.3°F (4.6°C). In Hamilton, stepping into March brings a temperature increase, moving up from February's subzero cold 30.6°F (-0.8°C) to an icy 40.3°F (4.6°C). Weather in March »Weather in April
April in Hamilton, Colorado, is a cool spring month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 50.2°F (10.1°C). Noticing a change, the average high-temperature during April moves from March's cold 40.3°F (4.6°C) to a fresh 50.2°F (10.1°C). Weather in April »Weather in May
May, the last month of the spring in Hamilton, is an enjoyable month, with an average temperature ranging between max 61.3°F (16.3°C) and min 37.9°F (3.3°C). In May, the average high-temperature increases from a fresh 50.2°F (10.1°C) in April to a comfortable 61.3°F (16.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Hamilton, Colorado, with an average temperature ranging between max 74.5°F (23.6°C) and min 45.9°F (7.7°C). In June, the average high-temperature increases from a refreshing 61.3°F (16.3°C) in May to a moderately hot 74.5°F (23.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Hamilton, Colorado, with an average temperature varying between 51.8°F (11°C) and 82.4°F (28°C). Hamilton's temperatures tend to reach their peak averages in July, with a high of 82.4°F (28°C) and a low of 51.8°F (11°C). The heat index value for July is calculated to be 82.4°F (28°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Hamilton, Colorado, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 80.6°F (27°C). The average high-temperature during August registers at a still warm 80.6°F (27°C), closely corresponding to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Hamilton, Colorado, with an average temperature varying between 72.5°F (22.5°C) and 46.2°F (7.9°C). With the onset of September, Hamilton's average high-temperature slightly adjusts, moderately receding from August's warm 80.6°F (27°C) to an agreeable 72.5°F (22.5°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Hamilton, Colorado, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 54.9°F (12.7°C). With the onset of October, Hamilton experiences a distinct temperature drop, with the average high-temperature reducing from September's pleasant 72.5°F (22.5°C) to a fresh 54.9°F (12.7°C). Weather in October »Weather in November
November, the last month of the autumn in Hamilton, is another cold month, with an average temperature ranging between min 23.9°F (-4.5°C) and max 41.4°F (5.2°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a cold 41.4°F (5.2°C) from a fresh 54.9°F (12.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Hamilton, Colorado, with an average temperature varying between 28.9°F (-1.7°C) and 12.7°F (-10.7°C). In Hamilton, entering December brings a temperature decrement, reducing from November's icy 41.4°F (5.2°C) to a freezing cold 28.9°F (-1.7°C). Weather in December »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month of January sees the average lowest temperatures in Hamilton, reaching 28.8°F (-1.8°C) at the peak and 10.9°F (-11.7°C) at the low.
The months with the highest humidity are January and February, with an average relative humidity of 84%.
In Hamilton, Colorado, during the entire year, the rain falls for 76.8 days and collects up to 9.88" (251mm) of precipitation.
Months with snowfall are January through May, September through December.
In Hamilton, during the entire year, snow falls for 68.6 days and aggregates up to 41.3" (1049mm) of snow.
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hamilton, Colorado.
With an average of 5.3h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
April is the month with the most rainfall in Hamilton, Colorado. Rain falls for 10.8 days and accumulates 1.38" (35mm) of precipitation.
In Hamilton, Colorado, snow does not fall in June through August.
June has the longest days of the year in Hamilton, with an average of 15h and 0min of daylight.
July, with an average high of 82.4°F (28°C) and a low of 51.8°F (11°C), signifies the warmest month of the year.
The month with the most sunshine in Hamilton, Colorado, is July, with an average of 11.9h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 6.
With an average relative humidity of 41%, August is the least humid month.
August and September are months with the least rain in Hamilton, Colorado, when the rain falls for 7.4 days and typically aggregates up to 0.39" (10mm) of rain.
The month with the most snowfall in Hamilton is December, when snow falls for 11.9 days and typically aggregates up to 7.28" (185mm) of snow.
December has the shortest days of the year in Hamilton, Colorado, with an average of 9h and 18min of daylight.
Average temperature
Hamilton, CO
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure
Hamilton, CO
- Average pressure in January:
30.27"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.22"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.92"Hg).
Average wind speed
Hamilton, CO
- Average wind speed in January:
5.2mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6.6mph - Average wind speed in April:
7.9mph - Average wind speed in May:
7.7mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
7.2mph - Average wind speed in October:
6.8mph - Average wind speed in November:
6.5mph - Average wind speed in December:
5.5mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity
Hamilton, CO
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Hamilton, CO
- Average rainfall in January:
0.87" - Average rainfall in February:
0.91" - Average rainfall in March:
1.18" - Average rainfall in April:
1.38" - Average rainfall in May:
0.94" - Average rainfall in June:
0.59"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.39" - Average rainfall in September:
0.39" - Average rainfall in October:
0.94" - Average rainfall in November:
0.79" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is April (1.38").
The driest months (with the least rainfall) are August and September (0.39").
Average rainfall days
Hamilton, CO
- Average rainfall days in January:
3.1 days - Average rainfall days in February:
3.5 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
10.1 days - Average rainfall days in June:
5.8 days
- Average rainfall days in July:
8.2 days - Average rainfall days in August:
7.4 days - Average rainfall days in September:
6.2 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
4 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (3.1 days).
Average snowfall
Hamilton, CO
- Average snowfall in January:
6.81" - Average snowfall in February:
6.85" - Average snowfall in March:
7.05" - Average snowfall in April:
5.31" - Average snowfall in May:
0.71" - Average snowfall in June:
0"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Hamilton, CO
- Average snowfall days in January:
12 days - Average snowfall days in February:
13.8 days - Average snowfall days in March:
10.4 days - Average snowfall days in April:
7.9 days - Average snowfall days in May:
1.6 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:
3 days - Average snowfall days in November:
7.9 days - Average snowfall days in December:
11.9 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Hamilton, 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 24min - 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:
10h and 0min - 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:
5h and 36min - Average sunshine in February:
5h and 18min - Average sunshine in March:
7h and 36min - Average sunshine in April:
10h and 6min - Average sunshine in May:
11h and 6min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 48min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days
Hamilton, CO
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
18 days - Average sunshine days in June:
22.8 days
- Average sunshine days in July:
19.7 days - Average sunshine days in August:
20.4 days - Average sunshine days in September:
21.6 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is June (22.8 days).
The month with the least sunshine days is February (13.3 days).
Average UV index
Hamilton, CO
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Hamilton, CO
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility
Hamilton, CO
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
