Expand
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 an icy winter month in Riley, Kansas, with an average temperature fluctuating between 23°F (-5°C) and 38.8°F (3.8°C). During the coldest month, January, temperatures average a high of 38.8°F (3.8°C) and a low of 23°F (-5°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Riley, Kansas, with an average temperature ranging between max 42.3°F (5.7°C) and min 26.1°F (-3.3°C). February's weather displays an average high-temperature of a still wintry 42.3°F (5.7°C), slightly varied from January's 38.8°F (3.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Riley, Kansas, with an average temperature fluctuating between 55.6°F (13.1°C) and 37.4°F (3°C). The start of March brings a rise in the average high-temperature, moving from an icy 42.3°F (5.7°C) in February to a mild 55.6°F (13.1°C). Weather in March »
Weather in April
April is an enjoyable spring month in Riley, Kansas, with an average temperature varying between 64.9°F (18.3°C) and 45.5°F (7.5°C). The arrival of April brings a change in Riley's weather, with average high-temperatures moving from March's moderate 55.6°F (13.1°C) to a still refreshing 64.9°F (18.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Riley, Kansas, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 73.2°F (22.9°C). Riley observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's enjoyable 64.9°F (18.3°C) to a pleasant 73.2°F (22.9°C). Weather in May »
Weather in June
June, the first month of the summer in Riley, is a warm month, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 67.1°F (19.5°C). June signals a shift in the average high-temperature, moving from May's pleasant 73.2°F (22.9°C) to a moderately hot 85.8°F (29.9°C). Weather in June »
Weather in July
July is a tropical summer month in Riley, Kansas, with an average temperature fluctuating between 89.6°F (32°C) and 69.8°F (21°C). The highest temperatures are recorded in July, with averages reaching a high of 89.6°F (32°C) and a low of 69.8°F (21°C). Throughout July, the heat index is estimated at a sweltering 102.2°F (39°C). Weather in July »
Weather in August
August, the last month of the summer in Riley, is another tropical month, with an average temperature fluctuating between 87.4°F (30.8°C) and 66.9°F (19.4°C). Riley's shift into August is marked by a subtle change to a still tropical 87.4°F (30.8°C) from July's 89.6°F (32°C) in temperature. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Riley, Kansas, with an average temperature fluctuating between 60.4°F (15.8°C) and 79.7°F (26.5°C). The advent of September brings a slight shift in average high-temperature, moving from a hot 87.4°F (30.8°C) in August to a warm 79.7°F (26.5°C). Weather in September »
Weather in October
October, like September, in Riley, Kansas, is another comfortable autumn month, with an average temperature fluctuating between 48.2°F (9°C) and 65.7°F (18.7°C). Riley in October experiences a subtle temperature decline, with average high-temperatures reducing from a moderately hot 79.7°F (26.5°C) in September to an enjoyable 65.7°F (18.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Riley, Kansas, with an average temperature varying between 53.6°F (12°C) and 36.9°F (2.7°C). In Riley, entering November brings a temperature decrement, reducing from October's comfortable 65.7°F (18.7°C) to a cool 53.6°F (12°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Riley, Kansas, with an average temperature ranging between max 41°F (5°C) and min 26.4°F (-3.1°C). With December's onset, the average high-temperature recedes from November's fresh 53.6°F (12°C) to a wintry 41°F (5°C). Weather in December »
Updated: Feb 12, 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 part of the year is the coldest in Riley?
Riley, Kansas, witnesses the coldest weather in January, with temperatures averaging a high of 38.8°F (3.8°C) and a low of 23°F (-5°C).
What is the driest month in Riley?
January is the month with the least rainfall. Rain falls for 3.7 days and accumulates 0.63" (16mm) of precipitation.
How many days does it rain in Riley?
In Riley, Kansas, during the entire year, the rain falls for 114.8 days and collects up to 21.1" (536mm) of precipitation.
When does it snow in Riley?
January through April, October through December are months with snowfall.
How many days does it snow in Riley?
Throughout the year, in Riley, there are 17.5 snowfall days, and 7.32" (186mm) of snow is accumulated.
What is the month with the lowest UV index in Riley?
The months with the lowest UV index in Riley are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most in Riley?
February is the month with the most snowfall in Riley. Snow falls for 4.8 days and accumulates 2.24" (57mm) of snow.
When is Daylight Saving Time (DST) in Riley?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Riley, 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 most humid month in Riley?
The most humid month is May, with an average relative humidity of 74%.
What is the wettest month in Riley?
The month with the most rainfall is May, when the rain falls for 14.3 days and typically aggregates up to 3.98" (101mm) of precipitation.
When it does not snow in Riley?
In Riley, Kansas, snow does not fall in May through September.
When are the longest days in Riley?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What is the month with the most sunshine in Riley?
June and July, with an average of 10.9h of sunshine, are months with the most sunshine.
When is the highest UV index in Riley?
With an average maximum UV index of 7, June is the month with the highest UV index.
What part of the year is the hottest in Riley?
With its average high temperature of 89.6°F (32°C) and a low of 69.8°F (21°C), July is regarded as the warmest month in Riley, Kansas.
What is the least humid month in Riley?
The least humid month is October, with an average relative humidity of 64%.
What is the month with the shortest days in Riley?
December has the shortest days of the year in Riley, with an average of 9h and 30min of daylight.
What is the month with the least sunshine in Riley?
With an average of 5.7h of sunshine, December has the least sunshine of the year in Riley.
Average temperature
Riley, KS
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure
Riley, KS
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Riley, KS
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.7mph - Average wind speed in March:
11.6mph - Average wind speed in April:
11.8mph - Average wind speed in May:
10.2mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
8.7mph - Average wind speed in August:
8.6mph - Average wind speed in September:
9.6mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.8mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity
Riley, KS
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is October (64%).
Average rainfall
Riley, KS
- Average rainfall in January:
0.63" - Average rainfall in February:
0.79" - Average rainfall in March:
1.34" - Average rainfall in April:
1.65" - Average rainfall in May:
3.98" - Average rainfall in June:
2.48"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.68" - Average rainfall in September:
1.65" - Average rainfall in October:
1.89" - Average rainfall in November:
0.75" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days
Riley, KS
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
4.8 days - Average rainfall days in December:
4.4 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.7 days).
Average snowfall
Riley, KS
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Riley, KS
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.4 days - Average snowfall days in May:
0 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 days - Average snowfall days in October:
0.7 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Riley, KS
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 3min - Average sunshine in March:
7h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Riley, KS
- Average sunshine days in January:
23.5 days - Average sunshine days in February:
19.1 days - Average sunshine days in March:
16.9 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.6 days - Average sunshine days in November:
22.8 days - Average sunshine days in December:
23.3 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (13.8 days).
Average UV index
Riley, KS
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Riley, KS
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 22).
Average visibility
Riley, 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).
Riley, Kansas, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location