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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, like December, in Declo, Idaho, is an icy winter month, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 33.4°F (0.8°C). The beginning of January records an average high-temperature of a still wintry 33.4°F (0.8°C), almost echoing the conditions of the previous month. Weather in January »
Weather in February
February, the last month of the winter in Declo, is also an icy month, with an average temperature fluctuating between 25.9°F (-3.4°C) and 37.9°F (3.3°C). The high-temperature average in February for Declo, Idaho, is a still cold 37.9°F (3.3°C), staying closely aligned with January's conditions. Weather in February »
Weather in March
March, the first month of the spring in Declo, is a frosty month, with an average temperature fluctuating between 48°F (8.9°C) and 32.9°F (0.5°C). As March arrives, Declo's weather shows an increase in high-temperatures, moving from February's wintry 37.9°F (3.3°C) to a frosty 48°F (8.9°C). Weather in March »
Weather in April
April is a moderate spring month in Declo, Idaho, with an average temperature ranging between min 37.4°F (3°C) and max 55.6°F (13.1°C). The start of April brings a subtle rise in the average high-temperature, moving from a frosty 48°F (8.9°C) in March to a moderate 55.6°F (13.1°C). Weather in April »
Weather in May
May, the last month of the spring in Declo, is a comfortable month, with an average temperature varying between 44.1°F (6.7°C) and 66.6°F (19.2°C). Declo's transition into May sees a rise in the average high-temperature, advancing from a moderate 55.6°F (13.1°C) in April to an enjoyable 66.6°F (19.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Declo, Idaho, with an average temperature ranging between min 52°F (11.1°C) and max 76.6°F (24.8°C). As June sets, the average high-temperature shows an increase, moving up from a refreshing 66.6°F (19.2°C) in May to a moderately hot 76.6°F (24.8°C). Weather in June »
Weather in July
July in Declo, Idaho, is a tropical summer month, with an average temperature ranging between min 60.8°F (16°C) and max 88.3°F (31.3°C). In Declo, the month of July registers the highest temperatures, averaging 88.3°F (31.3°C) at the peak and 60.8°F (16°C) at the lowest. Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Declo, Idaho, with an average temperature ranging between min 60.8°F (16°C) and max 86.9°F (30.5°C). The advent of August sees the average high-temperature at a still tropical 86.9°F (30.5°C), subtly shifted from July's 88.3°F (31.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Declo, Idaho, with an average temperature varying between 53.8°F (12.1°C) and 76.1°F (24.5°C). September's arrival coincides with a drop in the average high-temperature, decreasing from August's tropical 86.9°F (30.5°C) to a warm 76.1°F (24.5°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Declo, Idaho, with an average temperature ranging between max 58.8°F (14.9°C) and min 41.5°F (5.3°C). With the onset of October, Declo's average high-temperature witnesses a clear drop, receding from September's moderately hot 76.1°F (24.5°C) to a mild 58.8°F (14.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Declo, is another chilly month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 45.5°F (7.5°C). With the onset of November, Declo experiences a modest temperature adjustment, with the average high-temperature receding from a refreshing 58.8°F (14.9°C) in October to a frosty 45.5°F (7.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Declo, Idaho, with an average temperature fluctuating between 32.5°F (0.3°C) and 21.6°F (-5.8°C). December, marked by an average high-temperature of 32.5°F (0.3°C) and a low-temperature of 21.6°F (-5.8°C), is the coldest month. Weather in December »
Updated: Jul 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
What is the most humid month?
With an average relative humidity of 80%, January is the most humid month.
How much does it rain?
In Declo, Idaho, during the entire year, the rain falls for 105.2 days and collects up to 10.63" (270mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How many days does it snow in Declo?
Throughout the year, there are 50.9 snowfall days, and 24.57" (624mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 5.7h of sunshine.
What is the wettest month?
The month with the most rainfall is March, when the rain falls for 14 days and typically aggregates up to 1.46" (37mm) of precipitation.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
In Declo, Idaho, snow does not fall in June through August.
When are the longest days?
The month with the longest days is June, with an average of 15h and 18min of daylight.
What part of the year is the hottest?
July, recognised by an average high temperature of 88.3°F (31.3°C) and a low of 60.8°F (16°C), is Declo's warmest month.
What are the least humid months?
The months with the lowest humidity are July and August, with an average relative humidity of 30%.
What is the driest month in Declo?
The month with the least rainfall is July, when the rain falls for 5.2 days and typically collects 0.28" (7mm) of precipitation.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12h of sunshine.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 7.
What time of the year is the coldest?
December is the coldest month, exhibiting average temperatures of 32.5°F (0.3°C) at the peak and 21.6°F (-5.8°C) at the base.
When does it snow the most?
The month with the most snowfall is December, when snow falls for 13 days and typically aggregates up to 6.54" (166mm) of snow.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Declo, ID
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (32.5°F).
The months with the highest average low temperature are July and August (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure
Declo, ID
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Declo, ID
- Average wind speed in January:
7.1mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.9mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.3mph - Average wind speed in September:
7.5mph - Average wind speed in October:
7.8mph - Average wind speed in November:
7.7mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is January (7.1mph).
Average humidity
Declo, ID
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall
Declo, ID
- Average rainfall in January:
1.26" - Average rainfall in February:
1.3" - Average rainfall in March:
1.46" - Average rainfall in April:
1.02" - Average rainfall in May:
1.06" - Average rainfall in June:
0.67"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.35" - Average rainfall in September:
0.43" - Average rainfall in October:
0.63" - Average rainfall in November:
0.83" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Declo, ID
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
14 days - Average rainfall days in April:
14 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
7.4 days
- Average rainfall days in July:
5.2 days - Average rainfall days in August:
5.2 days - Average rainfall days in September:
6.3 days - Average rainfall days in October:
6.5 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
8.7 days
The months with the highest number of rainy days are March and April (14 days).
The months with the least rainy days are July and August (5.2 days).
Average snowfall
Declo, ID
- Average snowfall in January:
6.26" - Average snowfall in February:
4.37" - Average snowfall in March:
3.7" - Average snowfall in April:
1.14" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Declo, ID
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
6.6 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.6 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:
1.5 days - Average snowfall days in November:
4.6 days - Average snowfall days in December:
13 days
The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Declo, ID
- Average daylight in January:
9h and 3min - 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
7h and 1min - Average sunshine in March:
8h and 2min - Average sunshine in April:
9h and 5min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 5min - Average sunshine in September:
9h and 4min - Average sunshine in October:
7h and 5min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days
Declo, ID
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
12 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
19.7 days
- Average sunshine days in July:
22.6 days - Average sunshine days in August:
21.8 days - Average sunshine days in September:
21.6 days - Average sunshine days in October:
22 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
13.8 days
The month with the most sunshine days is July (22.6 days).
The month with the least sunshine days is March (12 days).
Average UV index
Declo, ID
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Declo, ID
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility
Declo, ID
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Declo, Idaho, USA
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