Contents
- Weather in November
- Frequently asked questions
- Average temperature in November
- Average pressure in November
- Average wind speed in November
- Average humidity in November
- Average rainfall in November
- Average rainfall days in November
- Average snowfall in November
- Average snowfall days in November
- Average daylight in November
- Average sunshine in November
- Average sunshine days in November
- Average UV index in November
- Average cloud cover in November
- Average visibility in November
Weather in November
Temperature
A shift in Herndon's weather is observed as October turns into November, with the average high temperature reducing from a moderate 59.9°F (15.5°C) to a chilly 45.9°F (7.7°C). Herndon reports a consistent average low-temperature of 32.5°F (0.3°C) throughout November nights.Humidity
In Herndon, Iowa, the average relative humidity in November is 71%.Rainfall
In Herndon, in November, during 6.9 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 125.7 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Herndon, during November, snow falls for 3.4 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, in Herndon, there are 38.1 snowfall days, and 15.31" (389mm) of snow is accumulated.Daylight
In Herndon, the average length of the day in November is 9h and 50min.On the first day of November, sunrise is at 7:50 am and sunset at 6:11 pm CDT. On the last day of the month, sunrise is at 7:25 am and sunset at 4:47 pm CST.
Note: On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from CDT to CST. Daylight Saving Time starts again on Sunday, March 9. 2025, at 2:00 am; consequently, the time zone reverts from CST to CDT.
Sunshine
In Herndon, the average sunshine in November is 5.6h.UV index
The months with the lowest UV index in Herndon are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during November translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the average November temperature in Herndon?
What is the average humidity in November in Herndon?
How much does it rain in Herndon in November?
How much does it snow in Herndon in November?
What is the average length of the day in November in Herndon?
When are sunrise and sunset in November in Herndon?
When does Daylight Saving Time (DST) end in November in Herndon?
How many hours of sunshine does Herndon have in November?
When is the lowest UV index in Herndon?
How high is the UV index in November in Herndon?
Average temperature in November
Herndon, IA
- Average high temperature in November: 45.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in November: 32.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in November
Herndon, IA
- Average pressure in November: 30.08"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in November
Herndon, IA
- Average wind speed in November: 10.4mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in November
Herndon, IA
- Average humidity in November: 71%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in November
Herndon, IA
- Average rainfall in November: 1.14"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in November
Herndon, IA
- Average rainfall days in November: 6.9 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in November
Herndon, IA
- Average snowfall in November: 1.34"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in November
Herndon, IA
- Average snowfall days in November: 3.4 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in November /
Average sunshine in November
Herndon, IA
- Average daylight in November: 9h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in November: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in November
Herndon, IA
- Average sunshine days in November: 19.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in November
Herndon, IA
- Average UV index in November: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in November
Herndon, IA
- Average cloud cover in November: 38
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in November
Herndon, IA
- Average visibility in November: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Herndon, Iowa, USA
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