Climate and monthly weather forecastDelta, CO
Climate and monthly weather forecast
Weather in January
January, like December, in Delta, Colorado, is a wintry winter month, with an average temperature ranging between min 15.4°F (-9.2°C) and max 33.1°F (0.6°C). January tends to be the coldest month, with temperatures averaging a daily high of 33.1°F (0.6°C) and a low of 15.4°F (-9.2°C). Weather in January »Weather in February
February, the last month of the winter in Delta, is also a wintry month, with an average temperature ranging between min 19.4°F (-7°C) and max 36.5°F (2.5°C). February's onset records a minor alteration in the average high-temperature to a still wintry 36.5°F (2.5°C) from January's 33.1°F (0.6°C). Weather in February »Weather in March
March, the first month of the spring in Delta, is a frosty month, with an average temperature varying between 46°F (7.8°C) and 28.6°F (-1.9°C). The start of March signals an increase in the average high-temperature, moving from a cold 36.5°F (2.5°C) in February to a chilly 46°F (7.8°C). Weather in March »Weather in April
April is a fresh spring month in Delta, Colorado, with an average temperature fluctuating between 33.6°F (0.9°C) and 54.1°F (12.3°C). The onset of April marks a slight increase in the average high-temperature, moving from a chilly 46°F (7.8°C) in March to a fresh 54.1°F (12.3°C). Weather in April »Weather in May
May, the last month of the spring in Delta, is a comfortable month, with an average temperature ranging between min 40.3°F (4.6°C) and max 64.8°F (18.2°C). Delta sees an increase in average high-temperatures during May, moving from a cool 54.1°F (12.3°C) in April to a refreshing 64.8°F (18.2°C). Weather in May »Weather in June
June, the first month of the summer in Delta, is a moderately hot month, with an average temperature fluctuating between 79°F (26.1°C) and 49.8°F (9.9°C). In Delta, stepping into June brings a temperature increase, moving up from May's enjoyable 64.8°F (18.2°C) to a moderately hot 79°F (26.1°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Delta, Colorado, with an average temperature ranging between min 55.2°F (12.9°C) and max 83.7°F (28.7°C). With average high and low temperatures of 83.7°F (28.7°C) and 55.2°F (12.9°C) respectively, July is Delta's warmest month. July's mean heat index is estimated at 84.2°F (29°C). Weather in July »Weather in August
August, the last month of the summer in Delta, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 53.4°F (11.9°C). Welcoming August, Delta notes an average high-temperature of a still moderately hot 81.1°F (27.3°C), nearly consistent with July's 83.7°F (28.7°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Delta, Colorado, with an average temperature varying between 47.8°F (8.8°C) and 73.6°F (23.1°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's 81.1°F (27.3°C) to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Delta, Colorado, is another refreshing autumn month, with an average temperature fluctuating between 58.3°F (14.6°C) and 36.9°F (2.7°C). Delta's transition into October marks a considerable drop in the average high-temperature, moving down from a moderately hot 73.6°F (23.1°C) in September to a mild 58.3°F (14.6°C). Weather in October »Weather in November
November, the last month of the autumn in Delta, is another chilly month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 46.2°F (7.9°C). The onset of November brings a small change in high-temperatures, falling from a moderate 58.3°F (14.6°C) in October to a chilly 46.2°F (7.9°C). Weather in November »Weather in December
December, the first month of the winter in Delta, is also an icy month, with an average temperature varying between 18°F (-7.8°C) and 34.7°F (1.5°C). Delta's December weather shows a moderate shift in high-temperatures, falling from November's chilly 46.2°F (7.9°C) to a wintry 34.7°F (1.5°C). Weather in December »Updated: Aug 26, 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
Delta's coldest month, January, generally records average temperatures ranging from a high of 33.1°F (0.6°C) to a low of 15.4°F (-9.2°C).
January is the most humid month, with an average relative humidity of 81%.
Throughout the year, there are 120.8 rainfall days, and 14.06" (357mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Delta, during the entire year, snow falls for 43.4 days and aggregates up to 22.87" (581mm) of snow.
With an average of 6.1h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
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.
The least humid month is June, with an average relative humidity of 34%.
June is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.71" (18mm) of precipitation.
June through September are months without snowfall.
With an average of 14h and 48min of daylight, June has the longest days of the year.
With an average of 12.1h of sunshine, June has the most sunshine of the year in Delta.
June through August, with an average maximum UV index of 5, are months with the highest UV index.
In Delta, July registers the highest temperatures, averaging 83.7°F (28.7°C) at the peak and 55.2°F (12.9°C) at the lowest.
August is the month with the most rainfall. Rain falls for 12.3 days and accumulates 1.54" (39mm) of precipitation.
The month with the most snowfall is December, when snow falls for 10.4 days and typically aggregates up to 5.87" (149mm) of snow.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Delta, CO
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.1°F).
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure
Delta, CO
- Average pressure in January:
30.26"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.03"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).
Average wind speed
Delta, CO
- Average wind speed in January:
3.9mph - Average wind speed in February:
5.1mph - Average wind speed in March:
6mph - Average wind speed in April:
6.6mph - Average wind speed in May:
6.5mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.6mph - Average wind speed in October:
5.1mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.2mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity
Delta, CO
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (34%).
Average rainfall
Delta, CO
- Average rainfall in January:
1.14" - Average rainfall in February:
1.02" - Average rainfall in March:
1.3" - Average rainfall in April:
1.22" - Average rainfall in May:
1.18" - Average rainfall in June:
0.71"
- Average rainfall in July:
1.38" - Average rainfall in August:
1.54" - Average rainfall in September:
1.42" - Average rainfall in October:
1.1" - Average rainfall in November:
0.87" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is June (0.71").
Average rainfall days
Delta, CO
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
11.4 days - Average rainfall days in June:
6.8 days
- Average rainfall days in July:
13.6 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
9.1 days - Average rainfall days in November:
7 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is April (13.8 days).
The month with the least rainy days is June (6.8 days).
Average snowfall
Delta, CO
- Average snowfall in January:
5.67" - Average snowfall in February:
4.92" - Average snowfall in March:
2.36" - Average snowfall in April:
1.02" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is December (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Delta, CO
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
2.5 days - Average snowfall days in May:
0.4 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:
0.7 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
10.4 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Delta, CO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 30min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 24min - Average sunshine in November:
7h and 6min - Average sunshine in December:
6h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days
Delta, CO
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
15 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
16.5 days - Average sunshine days in June:
20.4 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
16.2 days
The months with the most sunshine days are June and November (20.4 days).
The month with the least sunshine days is August (13.3 days).
Average UV index
Delta, 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
Delta, CO
The months with the most cloud cover are January and February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility
Delta, CO
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
