Climate and monthly weather forecastOlathe, KS
Climate and monthly weather forecast
The climate of Olathe
Olathe, Kansas, USA, is situated in a zone ascribed as a Humid subtropical climate by the Köppen climate classification. Labelled as Cfa, this distinct climate implies that the region experiences no dry season, with rainfall occurring throughout the year. The monthly average temperatures in Olathe range from 23°F (-5°C) to 69.3°F (20.7°C), with highs reaching from 37.6°F (3.1°C) in the coldest months to 87.1°F (30.6°C) during the hottest period.This remarkable variation in temperature is typical of a subtropical climate and allows for the copious biodiversity found in this region. Relative humidity levels stay relatively constant throughout the year, with an average ranging from 70 to 79%. Rainfall fluctuates significantly from 1.06" (27mm) to 4.69" (119mm) per month. The year sees an average of 100 days of rain and 16.2" (411mm) of annual snowfall that occurs predominantly between December and February.
Olathe also experiences noticeable shifts in daylight hours, from a low of 9.8 hours in the shorter winter days up to 14.9 hours during the summer. This variation impacts the amount of sunshine the city receives ranging from 5.3 hours to 10.5 hours which corresponds to roughly one-half to two-thirds of the available daylight hours.
The best time to visit Olathe
The perfect time to visit Olathe is from May through to mid-October when the highest temperatures are experienced. The average high temperature hovers from 72.9°F (22.7°C) to 87.1°F (30.6°C) during this time, making outdoor activities pleasant and enjoyable. Although rainfall is higher during May and June, the copious daylight hours and longer sunshine duration compensates for the increased precipitation.The worst time to visit Olathe
The least ideal time to visit Olathe would be from late November to early March. The cold weather sets in, and the average high temperature drops to between 37.6°F (3.1°C) and 54.7°F (12.6°C). Snow is also most likely during this period, with December experiencing 2.36" (60mm) of snowfall on average. The shorter daylight hours and reduced sunshine during these winter months add to the cold and gloomy atmosphere.Spring weather in Olathe
Spring in Olathe begins in March and typically lasts until May. The average low temperature during the spring months is usually between 37.9°F (3.3°C) and 55.9°F (13.3°C), while high temperatures range from 54.7°F (12.6°C) to 72.9°F (22.7°C). Relative humidity during this period mostly remains constant around 73 to 79%, while rainfall increases from an average of 2.36" (60mm) in March to its peak of 4.69" (119mm) in May.Summer weather in Olathe
The summer season lasts from June through August with average temperatures swing between 66°F (18.9°C) and 83.7°F (28.7°C). Relative humidity during the summer averages at 78%, and there is a decreased amount of rainfall, from 2.95" (75mm) at the start of the season to 2.87" (73mm) in July. Olathe summer days are characterised by long daylight hours, reaching up to 14.9 hours, with maximum sunshine reached at 10.5 hours in June and July.Autumn weather in Olathe
Autumn in Olathe begins in September and continues until November. During this season, low temperatures hover from 48.4°F (9.1°C) and 59.5°F (15.3°C) while high temperatures decrease from 78.3°F (25.7°C) to 53.2°F (11.8°C). Rainfall lessens, tapering from 2.6" (66mm) in September to 1.26" (32mm) in November. The daylight hours also decrease from 12.4 hours in September to 10.1 hours in November.Winter weather in Olathe
December marks the beginning of winter in Olathe, which lasts until February. During this time, low temperatures can drop to between 23°F (-5°C) and 27.1°F (-2.7°C), while high temperatures usually only reach from 37.6°F (3.1°C) to 41.5°F (5.3°C). Snowfall occurs predominantly in these months, reaching an average of 3.78" (96mm) in January. December holds the shortest daylight hours of 9.8 hours and provides a mere 5.3 hours of sunshine.Weather in January
January is characterized by chilly weather in Olathe, Kansas with frequent snowfall. Gradually, it gets colder and colder from December's mild conditions. A notable feature in January is that it experiences one of the lowest average temperatures, from 23°F (-5°C) to 37.6°F (3.1°C), and the city sees up to 2.36" (60mm) of snowfall on an average. Weather in January »Weather in February
February continues the cold spell from January but brings a slight rise in temperatures, signaling the transition towards spring. The Olathe weather remains vibrant with the onset of longer daylight hours. Comparatively, February experiences higher snowfall, with an average of 3.78" (96mm) increasing from the previous month. Weather in February »Weather in March
The city of Olathe welcomes spring with the weather in March. As winter transitions into spring, there is a significant increase in average temperatures, with highs reaching 54.7°F (12.6°C) and lows around 37.9°F (3.3°C). This shift in weather marks a decrease in snowfall, replaced by rainfall, which is more than double from the previous month, averaging at 2.36" (60mm). Weather in March »Weather in April
April sees further improvement in weather conditions from March in Olathe, offering warmer and longer days. The rise in temperature, combined with generous amounts of rainfall, creates an ideal environment for flora and fauna to thrive. Weather in April »Weather in May
May marks a transition from the delightful spring season to the beginning of summer in Olathe. The city is often filled with joy and celebration as the weather becomes more conducive for outdoor activities. The significant weather note for May is the heaviest rainfall, averaging at 4.69" (119mm), causing a blossoming of the city's flora. Weather in May »Weather in June
The arrival of June brings the warm summer season to Olathe, Kansas. Following from May's hint, temperatures reach their summer highs, and the city experiences vibrancy through long, sunny days. Despite the peak temperatures, June's average relative humidity of 78% ensures a comfortable atmosphere. Weather in June »Weather in July
July is recognized as the hottest month in Olathe, with temperatures reaching their maximum at 87.1°F (30.6°C). As the city endures the heat, daylight hours are at their longest, and the sun shines brightest. The average relative humidity dips slightly from June to 75%, providing some respite from the intense heat. Weather in July »Weather in August
August continues the summer season, with the weather in Olathe, Kansas remaining warm from July. However, a slight drop in temperature and the increase in rainfall as compared to the preceding month brings relief to the city's dwellers. Weather in August »Weather in September
September initiates the transition to fall in Olathe. A notable drop in temperature from the summer months brings cooler and more comfortable days. Despite the shift, September enjoys a fair amount of sunlight with 9.3 daily sunshine hours. Weather in September »Weather in October
October in Olathe welcomes the fall season in full swing. Following the weather transformation in September, October days are significantly cooler and shorter. The month proves a break from the high temperatures of the previous months, offering a crisp atmosphere for enjoying the autumn foliage. Weather in October »Weather in November
November in Olathe marks the onset of the winter season, with a significant drop in temperatures from the fall of October. The weather offers a stark contrast to the warm and sunny days of previous months. Though less frequent, the city experiences its first snowfall of the season with an average of 0.35" (9mm). Weather in November »Weather in December
December brings the full effect of winter to Olathe, Kansas. The month starts with a continuation of November's cold conditions and sees a further decrease in temperatures. Snow becomes more frequent, with average snowfall reaching 1.14" (29mm). Weather in December »Updated: Feb 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, noted for its average high-temperature of 37.6°F (3.1°C) and an average low-temperature of 23°F (-5°C), is considered the coldest month in Olathe, Kansas.
The month with the least rainfall in Olathe, Kansas, is January, when the rain falls for 6.1 days and typically collects 1.06" (27mm) of precipitation.
Throughout the year, in Olathe, there are 137 rainfall days, and 28.7" (729mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Olathe.
Throughout the year, in Olathe, Kansas, there are 20.8 snowfall days, and 9.61" (244mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 5.3h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall in Olathe, Kansas, is February, when snow falls for 6.7 days and typically aggregates up to 3.78" (96mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Olathe, 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.
May is the most humid month in Olathe, with an average relative humidity of 79%.
The month with the most rainfall is May, when the rain falls for 17.9 days and typically aggregates up to 4.69" (119mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Olathe.
In Olathe, snow does not fall in June through September.
The month with the longest days in Olathe, Kansas, is June, with an average of 14h and 48min of daylight.
The months with the most sunshine in Olathe are June and July, with an average of 10.5h of sunshine.
July, with its average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 69.3°F (20.7°C), holds the record as the warmest month.
October and November, with an average relative humidity of 70%, are the least humid months.
With an average of 9h and 30min of daylight, December has the shortest days of the year in Olathe, Kansas.
Average temperature
Olathe, KS
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.6°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 (23°F).
Average pressure
Olathe, KS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Olathe, KS
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.2mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.3mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Olathe, KS
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are October and November (70%).
Average rainfall
Olathe, KS
- Average rainfall in January:
1.06" - Average rainfall in February:
1.22" - Average rainfall in March:
2.36" - Average rainfall in April:
2.83" - Average rainfall in May:
4.69" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.99" - Average rainfall in September:
2.6" - Average rainfall in October:
2.44" - Average rainfall in November:
1.26" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days
Olathe, KS
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Olathe, KS
- Average snowfall in January:
2.36" - Average snowfall in February:
3.78" - Average snowfall in March:
1.06" - Average snowfall in April:
0.2" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Olathe, KS
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
6.7 days - Average snowfall days in March:
2.5 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.3 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:
0.5 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
3.7 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Olathe, KS
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days
Olathe, KS
- Average sunshine days in January:
20.5 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Olathe, KS
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Olathe, KS
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility
Olathe, 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).
