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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 Heyburn, Idaho, with an average temperature varying between 22.1°F (-5.5°C) and 33.4°F (0.8°C). The arrival of January brings an average high-temperature of a still wintry 33.4°F (0.8°C), closely following the temperature pattern of December. Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Heyburn, Idaho, with an average temperature fluctuating between 25.9°F (-3.4°C) and 37.9°F (3.3°C). At the onset of February, Heyburn records an average high-temperature of a still wintry 37.9°F (3.3°C), showing little deviation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Heyburn, is a frosty month, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 32.9°F (0.5°C). With the onset of March, Heyburn's average high-temperature sees a rise, moving from February's icy 37.9°F (3.3°C) to a chilly 48°F (8.9°C). Weather in March »
Weather in April
April is a moderate spring month in Heyburn, Idaho, with an average temperature ranging between max 55.6°F (13.1°C) and min 37.4°F (3°C). As April sets, the average high-temperature shows a slight increase, moving up 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 Heyburn, is a comfortable month, with an average temperature ranging between max 66.6°F (19.2°C) and min 44.1°F (6.7°C). May marks a rise in the average high-temperature, moving from April's moderate 55.6°F (13.1°C) to a comfortable 66.6°F (19.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Heyburn, Idaho, with an average temperature varying between 76.6°F (24.8°C) and 52°F (11.1°C). An increase in the average high-temperature marks June, moving from May's refreshing 66.6°F (19.2°C) to a moderately hot 76.6°F (24.8°C). Weather in June »
Weather in July
July is a hot summer month in Heyburn, Idaho, with an average temperature fluctuating between 60.8°F (16°C) and 88.3°F (31.3°C). July is the month that records the highest temperatures, with averages ranging from a high of 88.3°F (31.3°C) to a low of 60.8°F (16°C). Weather in July »
Weather in August
August, the last month of the summer in Heyburn, is another hot month, with an average temperature ranging between max 86.9°F (30.5°C) and min 60.8°F (16°C). The commencement of August brings an average high-temperature of a still hot 86.9°F (30.5°C), marking an inconsequential divergence from July. Weather in August »
Weather in September
September, the first month of the autumn in Heyburn, is still a warm month, with an average temperature fluctuating between 76.1°F (24.5°C) and 53.8°F (12.1°C). The onset of September brings a small change in high-temperatures, falling from a hot 86.9°F (30.5°C) in August to a warm 76.1°F (24.5°C). Weather in September »
Weather in October
October, the same as September, in Heyburn, Idaho, is another refreshing autumn month, with an average temperature varying between 58.8°F (14.9°C) and 41.5°F (5.3°C). In Heyburn, the average high-temperature in October significantly decreases from a warm 76.1°F (24.5°C) in September to a refreshing 58.8°F (14.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Heyburn, is also a frosty month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 45.5°F (7.5°C). The start of November comes with a reduction in 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
December, the first month of the winter in Heyburn, is also an icy month, with an average temperature ranging between min 21.6°F (-5.8°C) and max 32.5°F (0.3°C). Temperature readings reach their annual highs in December, averaging 32.5°F (0.3°C) and a minimum average of 21.6°F (-5.8°C). Weather in December »
Updated: Jun 25, 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?
The most humid month is January, with an average relative humidity of 80%.
How much does it rain?
Throughout the year, there are 105.2 rainfall days, and 10.63" (270mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, September through December.
How many days does it snow?
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?
January has the least sunshine of the year in Heyburn, 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 Heyburn?
June through August are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 18min of daylight.
What month is the hottest?
July is the month that records the highest temperatures in Heyburn, Idaho, with averages ranging from a high of 88.3°F (31.3°C) to a low of 60.8°F (16°C).
What is the least humid month?
The months with the lowest humidity are July and August, with an average relative humidity of 30%.
What is the driest month?
July is the month with the least rainfall. Rain falls for 5.2 days and accumulates 0.28" (7mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 12h of sunshine.
When is the highest UV index in Heyburn?
July is the month with the highest UV index in Heyburn, with an average maximum UV index of 7.
What part of the year is the coldest?
December, on average, is the coldest month in Heyburn, Idaho, registering a high temperature of 32.5°F (0.3°C) and a low of 21.6°F (-5.8°C).
What is the snowiest month?
The month with the most snowfall in Heyburn 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 in Heyburn is December, with an average of 9h and 6min of daylight.
When is the lowest UV index?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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
Heyburn, 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).
Heyburn, Idaho, USA
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