September weather forecast and climate
Williamsburg, KS

The first month of the autumn, September, is still a warm month in Williamsburg, Kansas, with average temperature ranging between max 78.4°F (25.8°C) and min 60.3°F (15.7°C).

Temperature

In September, the average high-temperature marginally drops, from 85.5°F (29.7°C) in August, to a still moderately hot 78.4°F (25.8°C). The average low-temperature, in September, is 60.3°F (15.7°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In Williamsburg, in September, during 12 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Williamsburg, during the entire year, the rain falls for 123.2 days and collects up to 25.75" (654mm) of precipitation.

Snowfall

In Williamsburg snow does not fall in June through September.

Daylight

In Williamsburg, Kansas, the average length of the day is 12.4h.

Sunshine

In Williamsburg, Kansas, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Williamsburg?

The average high-temperature, in September, in Williamsburg, is 78.4°F (25.8°C), while the average low-temperature is 60.3°F (15.7°C).

What is the average humidity in September in Williamsburg?

In September, the average relative humidity in Williamsburg is 75%.

How much does it rain in Williamsburg in September?

In Williamsburg, Kansas, in September, during 12 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

Does it snow in Williamsburg in September?

In Williamsburg, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Williamsburg?

In Williamsburg, Kansas, snow does not fall in June through September.

How many hours of daylight does Williamsburg have in September?

The average length of the day in September in Williamsburg, Kansas, is 12.4h.

How many hours of sunshine does Williamsburg have in September?

The average sunshine in September is 8.9h.

What is the UV index intensity in September in Williamsburg?

The average daily maximum UV index in September in Williamsburg is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Williamsburg, KS
  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (39.4°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in September - Williamsburg, KS
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.88").

Average wind speed in September - Williamsburg, KS
  • Average wind speed in September: 8.3mph

The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

Average humidity in September - Williamsburg, KS
  • Average humidity in September: 75%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (68%).

Average rainfall in September - Williamsburg, KS
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (5.12").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in September - Williamsburg, KS
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in September - Williamsburg, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.64").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Williamsburg, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Williamsburg, KS
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 5.5h).

Average sunshine days in September - Williamsburg, KS
  • Average sunshine days in September: 16 days

The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in September - Williamsburg, KS
  • Average UV index in September: 5

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

Average cloud cover in September - Williamsburg, KS
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are June and July (Cloud cover 25).

Average visibility in September - Williamsburg, KS
  • Average visibility in September: 6mi

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