Climate and monthly weather forecastGuyaz, ID
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Guyaz, Idaho, with temperature in the range of an average low of 13.1°F (-10.5°C) and an average high of 27.9°F (-2.3°C). During January, the average high-temperature is a still freezing cold 27.9°F (-2.3°C), maintaining a close resemblance to that of the preceding month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Guyaz, Idaho, with an average temperature fluctuating between 29.8°F (-1.2°C) and 16.7°F (-8.5°C). Guyaz's transition from January to February introduces an average high-temperature of a still freezing cold 29.8°F (-1.2°C), marking an insignificant variation from the 27.9°F (-2.3°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Guyaz, Idaho, with an average temperature fluctuating between 39°F (3.9°C) and 25.2°F (-3.8°C). A rise in the average high-temperature is observed during March, moving from a freezing cold 29.8°F (-1.2°C) in February to an icy 39°F (3.9°C). Weather in March »Weather in April
April in Guyaz, Idaho, is a chilly spring month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 49.8°F (9.9°C). April brings a rise in Guyaz's average high-temperature, moving from a wintry 39°F (3.9°C) in March to a chilly 49.8°F (9.9°C). Weather in April »Weather in May
May, the last month of the spring in Guyaz, is a refreshing month, with an average temperature varying between 38.1°F (3.4°C) and 61.3°F (16.3°C). With the beginning of May, Guyaz's average high-temperature sees an increase, transitioning from a chilly 49.8°F (9.9°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 pleasant month in Guyaz, Idaho, with an average temperature ranging between min 45°F (7.2°C) and max 71.8°F (22.1°C). Guyaz's transition into June brings a rise in the average high-temperature, moving from a comfortable 61.3°F (16.3°C) in May to a pleasant 71.8°F (22.1°C). Weather in June »Weather in July
July in Guyaz, Idaho, is a moderately hot summer month, with an average temperature fluctuating between 82.4°F (28°C) and 52.7°F (11.5°C). With average high and low temperatures of 82.4°F (28°C) and 52.7°F (11.5°C) respectively, July is Guyaz's warmest month. The heat index value for July is appraised at 82.4°F (28°C). Weather in July »Weather in August
August, the last month of the summer in Guyaz, is also a moderately hot month, with an average temperature varying between 52.5°F (11.4°C) and 81.1°F (27.3°C). Welcoming August, Guyaz notes an average high-temperature of a still warm 81.1°F (27.3°C), nearly consistent with July's 82.4°F (28°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Guyaz, Idaho, with an average temperature ranging between min 46.4°F (8°C) and max 71.2°F (21.8°C). As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a warm 81.1°F (27.3°C) to an agreeable 71.2°F (21.8°C). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Guyaz, Idaho, with an average temperature ranging between min 34.7°F (1.5°C) and max 52.9°F (11.6°C). As September transitions into October, Guyaz sees a clear drop in the average high-temperature, declining from a pleasant 71.2°F (21.8°C) to a cool 52.9°F (11.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Guyaz, Idaho, with an average temperature fluctuating between 24.1°F (-4.4°C) and 38.8°F (3.8°C). November's arrival correlates with a reduction in the average high-temperature, down from a cool 52.9°F (11.6°C) in October to a cold 38.8°F (3.8°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Guyaz, Idaho, with an average temperature varying between 14.4°F (-9.8°C) and 27°F (-2.8°C). December, noted for its average high-temperature of 27°F (-2.8°C) and an average low-temperature of 14.4°F (-9.8°C), is considered the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Guyaz, ID
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (27°F).
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure
Guyaz, ID
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.17"Hg - Average pressure in December:
30.26"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Guyaz, ID
- Average wind speed in January:
5.5mph - Average wind speed in February:
6.4mph - Average wind speed in March:
6.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
7.1mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
6.9mph - Average wind speed in September:
6.9mph - Average wind speed in October:
6.7mph - Average wind speed in November:
6.3mph - Average wind speed in December:
5.6mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity
Guyaz, ID
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).
Average rainfall
Guyaz, ID
- Average rainfall in January:
1.02" - Average rainfall in February:
1.18" - Average rainfall in March:
1.14" - Average rainfall in April:
1.26" - Average rainfall in May:
1.54" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.55" - Average rainfall in August:
0.91" - Average rainfall in September:
1.18" - Average rainfall in October:
0.91" - Average rainfall in November:
0.87" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days
Guyaz, ID
- Average rainfall days in January:
3 days - Average rainfall days in February:
5 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
13.5 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
9.3 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
5.3 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).
Average snowfall
Guyaz, ID
The month with the highest snowfall is January (8.11").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Guyaz, ID
- Average snowfall days in January:
15.8 days - Average snowfall days in February:
16.7 days - Average snowfall days in March:
12.6 days - Average snowfall days in April:
7.8 days - Average snowfall days in May:
2.2 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.4 days - Average snowfall days in October:
3.3 days - Average snowfall days in November:
10 days - Average snowfall days in December:
16.9 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Guyaz, ID
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 36min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 0min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 6min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Guyaz, ID
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
19.8 days - Average sunshine days in August:
17.3 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
18 days - Average sunshine days in December:
13.2 days
The month with the most sunshine days is July (19.8 days).
The month with the least sunshine days is February (10.3 days).
Average UV index
Guyaz, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Guyaz, ID
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility
Guyaz, ID
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, February and December (4mi).





