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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Jamestown, Colorado, with an average temperature fluctuating between 19°F (-7.2°C) and 36.7°F (2.6°C). As Jamestown transitions from December to January, the average high-temperatures adjust to a still cold 36.7°F (2.6°C), nearly the same as the previous 35.2°F (1.8°C). Weather in January »
Weather in February
February, the last month of the winter in Jamestown, is also an icy month, with an average temperature ranging between min 18°F (-7.8°C) and max 36.1°F (2.3°C). Entering February, Jamestown's average high-temperature reads a still wintry 36.1°F (2.3°C), indicating a close resemblance to the previous month's climate. Weather in February »
Weather in March
March, the first month of the spring in Jamestown, is a frosty month, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 26.1°F (-3.3°C). March's arrival is marked by an increase in the average high-temperature, moving from an icy 36.1°F (2.3°C) in February to a frosty 46.4°F (8°C). Weather in March »
Weather in April
April is a cool spring month in Jamestown, Colorado, with an average temperature ranging between max 52.3°F (11.3°C) and min 30.7°F (-0.7°C). April's arrival sees a mild rise in the average high-temperature, transitioning from March's frosty 46.4°F (8°C) to a cool 52.3°F (11.3°C). Weather in April »
Weather in May
May, the last month of the spring in Jamestown, is an enjoyable month, with temperature in the range of an average low of 38.7°F (3.7°C) and an average high of 61°F (16.1°C). May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's cool 52.3°F (11.3°C) to a refreshing 61°F (16.1°C). Weather in May »
Weather in June
June, the first month of the summer in Jamestown, is a warm month, with an average temperature varying between 76.6°F (24.8°C) and 50°F (10°C). The arrival of June brings a significant change in Jamestown's weather, with average high-temperatures climbing from May's refreshing 61°F (16.1°C) to a warm 76.6°F (24.8°C). Weather in June »
Weather in July
July, like June, in Jamestown, Colorado, is another warm summer month, with an average temperature fluctuating between 80.4°F (26.9°C) and 55.2°F (12.9°C). July, with an average high of 80.4°F (26.9°C) and a low of 55.2°F (12.9°C), signifies the warmest month of the year. Weather in July »
Weather in August
August, the last month of the summer in Jamestown, is another warm month, with an average temperature varying between 54.1°F (12.3°C) and 79.5°F (26.4°C). Jamestown ushers in August with an average high-temperature of a still warm 79.5°F (26.4°C), showing a close resemblance to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Jamestown, Colorado, with an average temperature ranging between max 72.3°F (22.4°C) and min 47.8°F (8.8°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderately hot 79.5°F (26.4°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Jamestown, Colorado, with an average temperature varying between 57.2°F (14°C) and 35.2°F (1.8°C). In October, the meteorological conditions markedly change with the average high-temperature descending from an agreeable 72.3°F (22.4°C) in September to a mild 57.2°F (14°C). Weather in October »
Weather in November
November, the last month of the autumn in Jamestown, is also a frosty month, with temperature in the range of an average low of 26.4°F (-3.1°C) and an average high of 46°F (7.8°C). With November's onset, the weather shows a temperature decrease, transitioning from a refreshing 57.2°F (14°C) in October to a chilly 46°F (7.8°C). Weather in November »
Weather in December
December, the first month of the winter in Jamestown, is still a cold month, with an average temperature varying between 18.1°F (-7.7°C) and 35.2°F (1.8°C). The lowest temperatures are recorded in December, with averages reaching a high of 35.2°F (1.8°C) and a low of 18.1°F (-7.7°C). Weather in December »
[Resources]Frequently asked questions
What is the driest month in Jamestown?
The month with the least rainfall in Jamestown is January, when the rain falls for 4.3 days and typically collects 0.39" (10mm) of precipitation.
How much does it rain in Jamestown?
Throughout the year, there are 117.3 rainfall days, and 14.17" (360mm) of precipitation is accumulated.
When does it snow in Jamestown?
January through May, October through December are months with snowfall.
How much does it snow in Jamestown?
Throughout the year, in Jamestown, Colorado, there are 44.8 snowfall days, and 37.01" (940mm) of snow is accumulated.
What are the months with the lowest UV index in Jamestown?
The months with the lowest UV index in Jamestown are January, February, November and December, with an average maximum UV index of 2.
What is the most humid month in Jamestown?
February is the most humid month, with an average relative humidity of 70%.
What is the month with the least sunshine in Jamestown?
The month with the least sunshine in Jamestown, Colorado, is February, with an average of 6.6h of sunshine.
When is Daylight Saving Time (DST) in Jamestown?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jamestown, Colorado, 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.
What is the snowiest month in Jamestown?
The month with the most snowfall in Jamestown, Colorado, is April, when snow falls for 4.9 days and typically aggregates up to 7.76" (197mm) of snow.
What is the wettest month in Jamestown?
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 2.48" (63mm) of precipitation.
What is the least humid month in Jamestown?
The months with the lowest humidity are June, August and September, with an average relative humidity of 45%.
When it does not snow in Jamestown?
In Jamestown, Colorado, snow does not fall in June through September.
When are the longest days in Jamestown?
The month with the longest days in Jamestown is June, with an average of 15h and 0min of daylight.
What is the month with the most sunshine in Jamestown?
June and July, with an average of 11.7h of sunshine, are months with the most sunshine in Jamestown.
What are the months with the highest UV index in Jamestown?
June through August, with an average maximum UV index of 5, are months with the highest UV index in Jamestown, Colorado.
What is the hottest time of year in Jamestown?
Jamestown, Colorado, reaches its average highest temperatures in July, measuring 80.4°F (26.9°C) at the peak and 55.2°F (12.9°C) at the lowest.
What month is the coldest in Jamestown?
Jamestown's December weather, with an average high temperature of 35.2°F (1.8°C) and an average low temperature of 18.1°F (-7.7°C), tends to be the coldest of the year.
What is the month with the shortest days in Jamestown?
The month with the shortest days in Jamestown, Colorado, is December, with an average of 9h and 24min of daylight.
Average temperature
Jamestown, CO
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is December (35.2°F).
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure
Jamestown, CO
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.92"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:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.92"Hg).
Average wind speed
Jamestown, CO
- Average wind speed in January:
7.3mph - Average wind speed in February:
6.9mph - Average wind speed in March:
6.9mph - Average wind speed in April:
6.6mph - Average wind speed in May:
5.7mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest months (with the lowest average wind speed) are May, July, August and September (5.7mph).
Average humidity
Jamestown, CO
The month with the highest relative humidity is February (70%).
The months with the lowest relative humidity are June, August and September (45%).
Average rainfall
Jamestown, CO
- Average rainfall in January:
0.39" - Average rainfall in February:
0.75" - Average rainfall in March:
1.14" - Average rainfall in April:
1.65" - Average rainfall in May:
2.48" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.89" - Average rainfall in August:
1.26" - Average rainfall in September:
1.02" - Average rainfall in October:
0.91" - Average rainfall in November:
0.67" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days
Jamestown, CO
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
7 days - Average rainfall days in November:
3.3 days - Average rainfall days in December:
3.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (3.3 days).
Average snowfall
Jamestown, CO
- Average snowfall in January:
2.87" - Average snowfall in February:
5.83" - Average snowfall in March:
6.26" - Average snowfall in April:
7.76" - Average snowfall in May:
1.65" - Average snowfall in June:
0"
The month with the highest snowfall is April (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Jamestown, CO
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
1.7 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:
2.6 days - Average snowfall days in November:
5.6 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Jamestown, CO
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 24min).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
6h and 4min - Average sunshine in March:
8h and 4min - Average sunshine in April:
10h and 2min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 5min - Average sunshine in October:
7h and 2min - Average sunshine in November:
7h and 1min - Average sunshine in December:
6h and 5min
The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days
Jamestown, CO
- Average sunshine days in January:
22.2 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
17.6 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
21.9 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is July (9.9 days).
Average UV index
Jamestown, CO
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Jamestown, CO
The months with the most cloud cover are April and May (Cloud cover 28).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility
Jamestown, 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).
Jamestown, Colorado, USA
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