Climate and monthly weather forecast
Herndon, KS

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Weather in January

January, like December, in Herndon, Kansas, is a wintry winter month, with an average temperature ranging between max 40.6°F (4.8°C) and min 24.3°F (-4.3°C). With the start of January, Herndon measures an average high-temperature of a still cold 40.6°F (4.8°C), not significantly differing from December's 40.1°F (4.5°C). Weather in January »

Weather in February

February, the last month of the winter in Herndon, is a chilly month, with an average temperature ranging between max 43.2°F (6.2°C) and min 25.3°F (-3.7°C). As Herndon steps into February, the average high-temperature is measured at a chilly 43.2°F (6.2°C), displaying minor differences from January's 40.6°F (4.8°C). Weather in February »

Weather in March

March, the first month of the spring in Herndon, is a moderate month, with an average temperature ranging between min 35.8°F (2.1°C) and max 56.5°F (13.6°C). As March sets, the average high-temperature shows an increase, moving up from a chilly 43.2°F (6.2°C) in February to a mild 56.5°F (13.6°C). Weather in March »

Weather in April

April in Herndon, Kansas, is a refreshing spring month, with an average temperature ranging between max 64°F (17.8°C) and min 42.6°F (5.9°C). The shift into April brings a slight increase in the average high-temperature, moving from 56.5°F (13.6°C) in March to a still refreshing 64°F (17.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Herndon, Kansas, with an average temperature varying between 72.3°F (22.4°C) and 51.4°F (10.8°C). As Herndon welcomes May, the average high-temperature sees a modest rise, transitioning from an enjoyable 64°F (17.8°C) in April to a pleasant 72.3°F (22.4°C). Weather in May »

Weather in June

June, the first month of the summer in Herndon, is a tropical month, with an average temperature fluctuating between 87.4°F (30.8°C) and 65.1°F (18.4°C). Herndon's June weather is characterized by a distinct upsurge in high-temperatures, soaring from May's agreeable 72.3°F (22.4°C) to a tropical 87.4°F (30.8°C). Weather in June »

Weather in July

July, like June, is a hot summer month in Herndon, Kansas, with an average temperature varying between 91.9°F (33.3°C) and 69.4°F (20.8°C). July, on average, is the warmest month, registering a high temperature of 91.9°F (33.3°C) and a low of 69.4°F (20.8°C). The heat index for July is appraised at a fiery hot 100.4°F (38°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Herndon, Kansas, with an average temperature varying between 66.2°F (19°C) and 89.1°F (31.7°C). Upon the beginning of August, Herndon's high-temperatures register at a still tropical 89.1°F (31.7°C), closely mirroring the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Herndon, is still a warm month, with an average temperature ranging between max 81°F (27.2°C) and min 59.7°F (15.4°C). As August makes way for September, Herndon's average high-temperature eases from a tropical 89.1°F (31.7°C) to a moderately hot 81°F (27.2°C). Weather in September »

Weather in October

October, like September, in Herndon, Kansas, is another refreshing autumn month, with an average temperature fluctuating between 46°F (7.8°C) and 65.3°F (18.5°C). Herndon in October sees a clear temperature decline, with average high-temperatures decreasing from a warm 81°F (27.2°C) in September to an enjoyable 65.3°F (18.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Herndon, is another cool month, with an average temperature varying between 53.2°F (11.8°C) and 34.7°F (1.5°C). November's onset brings a slight change in high-temperatures, falling from a comfortable 65.3°F (18.5°C) in October to a fresh 53.2°F (11.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Herndon, Kansas, with an average temperature fluctuating between 40.1°F (4.5°C) and 24.8°F (-4°C). In Herndon, Kansas, December is the coldest month, with temperatures averaging a high of 40.1°F (4.5°C) and a low of 24.8°F (-4°C). Weather in December »

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 67%.

What is the driest month?

January is the month with the least rainfall in Herndon. Rain falls for 4.3 days and accumulates 0.43" (11mm) of precipitation.

How many days does it rain?

Throughout the year, there are 105.3 rainfall days, and 15.79" (401mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

How much does it snow?

In Herndon, during the entire year, snow falls for 24.7 days and aggregates up to 10.24" (260mm) of snow.

What are the months with the least sunshine in Herndon?

The months with the least sunshine are January and December, with an average of 6.3h of sunshine.

What are the months with the lowest UV index in Herndon?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 6.5 days and accumulates 2.17" (55mm) of snow.

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 CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 14.7 days and typically aggregates up to 2.6" (66mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days in Herndon?

With an average of 15h and 0min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

What time of the year is the hottest?

Temperature records mark July as the warmest month, with highs averaging 91.9°F (33.3°C) and lows at 69.4°F (20.8°C).

What is the least humid month?

The least humid month is July, with an average relative humidity of 52%.

What month has the most sunshine?

The month with the most sunshine in Herndon, Kansas, is July, with an average of 11.4h of sunshine.

What are the coldest months?

Herndon experiences its average lowest temperatures in December, reaching a peak of 40.1°F (4.5°C) and a minimum of 24.8°F (-4°C).

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Herndon, KS

Average temperature - Herndon, KS

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (40.1°F).

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure
Herndon, KS

Average pressure - Herndon, KS

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

Average wind speed
Herndon, KS

Average wind speed - Herndon, KS

The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity
Herndon, KS

Average humidity - Herndon, KS

The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (52%).

Average rainfall
Herndon, KS

Average rainfall - Herndon, KS

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days
Herndon, KS

Average rainfall days - Herndon, KS

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (2.6 days).

Average snowfall
Herndon, KS

Average snowfall - Herndon, KS

The month with the highest snowfall is February (2.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Herndon, KS

Average snowfall days - Herndon, KS

The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Herndon, KS

Average daylight / Average sunshine - Herndon, KS

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).

Average sunshine days
Herndon, KS

Average sunshine days - Herndon, KS

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is August (12.9 days).

Average UV index
Herndon, KS

Average UV index - Herndon, KS

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Herndon, KS

Average visibility - Herndon, KS

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Herndon, Kansas, USA

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