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Contents
- The climate of Ottawa
- The best time to visit Ottawa
- The worst time to visit Ottawa
- Spring weather in Ottawa
- Summer weather in Ottawa
- Autumn weather in Ottawa
- Winter weather in Ottawa
- 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
The climate of Ottawa
Ottawa, nestled in Kansas, USA, is a city subjected to a Humid subtropical climate in the Köppen Climate Classification, coded as Cfa. This category means that the city does not experience a dry season. The varying climatic parameters such as temperature, rainfall, and sunlight hours mark distinct seasons throughout the year.
A vast temperature range characterizes Ottawa throughout the year, with temperatures fluctuating from 23.9°F (-4.5°C) in winter to 87.4°F (30.8°C) in peak summer. Higher humidity levels accompany these warmer months, escalating from 71% in February to 79% in May. Although the city displays a fair share of solar exposure, cloud cover alters from 25% to 44%, influencing the city's weather consequently.
Ottawa's rainfall volume ranges from 0.71" (18mm) to 4.25" (108mm), with noticeable precipitation observed in most months. The city observes considerable snowfall for about six months, with January being the snowiest month at 1.61" (41mm), and March just recording 0.67" (17mm). In comparison, wind speeds also vary from 7mph (11.3km/h) to 10.6mph (17.1km/h), indicating a windy start and end to the year, and calm summer months.
A vast temperature range characterizes Ottawa throughout the year, with temperatures fluctuating from 23.9°F (-4.5°C) in winter to 87.4°F (30.8°C) in peak summer. Higher humidity levels accompany these warmer months, escalating from 71% in February to 79% in May. Although the city displays a fair share of solar exposure, cloud cover alters from 25% to 44%, influencing the city's weather consequently.
Ottawa's rainfall volume ranges from 0.71" (18mm) to 4.25" (108mm), with noticeable precipitation observed in most months. The city observes considerable snowfall for about six months, with January being the snowiest month at 1.61" (41mm), and March just recording 0.67" (17mm). In comparison, wind speeds also vary from 7mph (11.3km/h) to 10.6mph (17.1km/h), indicating a windy start and end to the year, and calm summer months.
The best time to visit Ottawa
Outlining the climatic conditions, the most appropriate time to visit Ottawa depends on the individual's preference for weather. However, May to September can be considered favorable for outdoor activities owing to pleasant temperatures, greater visibility, increased daylight hours, and lower rainfall. During these months, temperatures range from 73°F (22.8°C) to 87.4°F (30.8°C), imparting days filled with warmth and comfort for sightseeing and exploring. Hours of sunshine stretch up to 14.8 hours in June, amplifying the available daylight for tourism.
The worst time to visit Ottawa
In contrast, Ottawa's weather from December to March might not be ideal for traveling, primarily due to the cold temperature and snowfall. January exhibits the lowest average temperatures, falling down to 23.9°F (-4.5°C), along with the highest snowfall. This period also showcases minimal daylight hours, with December rendering the least at only 9.8 hours.
Spring weather in Ottawa
In Ottawa, spring months from March to May bring a transformation from cold to warmer temperatures. However, the transformation isn't merely limited to temperature. March witnesses a surge in rainfall from 0.91" (23mm) to 1.81" (46mm). Humidity levels also elevate but remain relatively constant for this season. All the while, daylight hours increase vividly, from 12 hours in March to 14.3 hours in May, offering an extended period to enjoy nature's rejuvenation.
Summer weather in Ottawa
Summers in Ottawa, typically from June to August, are characterized by the highest temperatures of the year. June presents the highest levels of daylight, marking 14.8 hours, while July brings about the hottest temperatures, averaging around 87.4°F (30.8°C). Rainfall and humidity levels moderate, but the pressure finds stability in these months.
Autumn weather in Ottawa
The arrival of September signals autumn in Ottawa, extending until November. Autumn manifests as a transitional period before winter usurps. The temperature gradually cools down from September's 78.8°F (26°C) to November's 53.6°F (12°C). Concurrently, daylight hours minimize, paving the way for longer nights. Rainfall also decreases, while wind speeds commencing in September escalate, reaching up to 10.1mph (16.3km/h) in November.
Winter weather in Ottawa
December through February defines winter in Ottawa. Lower temperatures can be expected during this time, dropping down to 23.9°F (-4.5°C) in January. These months are also associated with shorter daylight periods, reducing to as little as 9.5 hours in December. The city also experiences snowfall during these months, along with heightened wind speeds, averaging up to 10.4mph (16.7km/h) in February. This transition into the cold season completes Ottawa's seasonal weather cycle, providing an eclectic mix of weather conditions throughout the year.
Weather in January
The year kicks off with January, the coldest month, as Ottawa, Kansas plunges into wintry conditions. Temperatures rarely rise above 38.8°F (3.8°C), making it a chilly month indeed. In comparison to the subsequent month, the winds in January tend to be gustier. Weather in January »
Weather in February
February shows a slight improvement in weather conditions compared to January. Ottawa experiences a rise in average temperatures during this month with slighter winds compared to January. Still, residents are encouraged to keep their warm clothing handy. Weather in February »
Weather in March
March symbolizes the onset of spring in Ottawa. There is a noticeable increase in the average temperature and the daylight hours extend to 12 hours. Despite the transition from the cold winter, residents can still expect a precipitation level of 1.81" (46mm). Weather in March »
Weather in April
April brings with it some of the most pleasant weather conditions in Ottawa, Kansas. The month is characterized by longer daylight hours and increased sunshine duration, which cultivates a warm atmosphere in the city. The rainfall peaks at 2.09" (53mm), painting the city in vibrant hues of spring blossoms. Weather in April »
Weather in May
May marks the beginning of summer in Ottawa, with temperatures starting to spike significantly. The weather is largely consistent during this month with reduced wind speeds and a consistently high relative humidity level. The most distinguishing feature of May is the heavy rainfall, intensifying the freshness of the city's flora. Weather in May »
Weather in June
In June, Ottawa, Kansas fully embraces summer. Temperatures climb further, and sunlight is in ample supply, making the days long and bright. Despite the intensity of the heat, rainfall events maintain the lush greenery throughout the city. Weather in June »
Weather in July
July is the hottest month in Ottawa, with temperatures soaring to a peak of 87.4°F (30.8°C). The city enjoys the most daylight during this time, with a little over 14 hours on average. Despite the rising temperatures, residents are treated to a respite in the form of showers, keeping the humidity levels in check. Weather in July »
Weather in August
Following on the heels of the hottest month, August sees a slight drop in temperatures. While still part of the summer season, the weather begins to show signs of an approaching transition to fall. Although the temperatures are similar to July, there's a noticeable reduction in the average daylight hours. Weather in August »
Weather in September
September marks the imminent end of the summer season in Ottawa, Kansas. There is a significant drop in average temperatures, signaling the beginning of fall. Rainfall subsides towards September, although occasional rain showers can still be seen towards the beginning of the month. Weather in September »
Weather in October
October ushers in the fall in Ottawa, with a distinct drop in temperatures from the preceding month. Days in October are markedly cooler and shorter, with the average temperatures dipping into the cold territory. Along with this, rainfall also declines sharply as the month progresses. Weather in October »
Weather in November
November sees a continuation in the drop of temperatures, paving the way for winter. Even though the days are shorter, sunshine is still in decent supply. The city receives occasional snowfall towards the end of the month, signaling the arrival of the winter season. Weather in November »
Weather in December
December marks the height of the winter season in Ottawa, Kansas. Temperatures drop further and daylight becomes scarce as the days become shorter. Despite the chill, the city enjoys clear weather, for snowfall is fairly low at 0.87" (22mm). Weather in December »
Updated: Jul 18, 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?
The month of January, characterized by an average high of 38.8°F (3.8°C) and a low of 23.9°F (-4.5°C), is recognized as the coldest.
What is the driest month in Ottawa?
January is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.71" (18mm) of precipitation.
How many days does it rain?
In Ottawa, during the entire year, the rain falls for 126.9 days and collects up to 23.5" (597mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
How many days does it snow?
In Ottawa, during the entire year, snow falls for 14 days and aggregates up to 6.38" (162mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 5.4h of sunshine.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 4.4 days and accumulates 2.28" (58mm) 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 most humid month?
May is the most humid month, with an average relative humidity of 79%.
What is the wettest month?
The month with the most rainfall in Ottawa is May, when the rain falls for 16.7 days and typically aggregates up to 4.25" (108mm) of precipitation.
When it does not snow?
In Ottawa, snow does not fall in May through September.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.7h of sunshine.
What is the month with the highest UV index?
The month with the highest UV index in Ottawa is June, with an average maximum UV index of 7.
What month is the hottest?
In Ottawa, the average temperatures in July are the highest, with a peak at 87.4°F (30.8°C) and a low of 68.9°F (20.5°C).
What are the least humid months?
October and November, with an average relative humidity of 69%, are the least humid months.
What is the month with the shortest days in Ottawa?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Ottawa, KS
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure
Ottawa, KS
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"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 (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Ottawa, KS
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.8mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Ottawa, KS
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are October and November (69%).
Average rainfall
Ottawa, KS
- Average rainfall in January:
0.71" - Average rainfall in February:
0.91" - Average rainfall in March:
1.81" - Average rainfall in April:
2.09" - Average rainfall in May:
4.25" - Average rainfall in June:
2.64"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.95" - Average rainfall in September:
2.01" - Average rainfall in October:
1.69" - Average rainfall in November:
0.87" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days
Ottawa, KS
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
5.9 days - Average rainfall days in December:
4.5 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is December (4.5 days).
Average snowfall
Ottawa, KS
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Ottawa, KS
- Average snowfall days in January:
3.9 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.4 days - Average snowfall days in November:
0.9 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ottawa, KS
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - 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 1min - Average daylight in December:
9h and 3min
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 2min - Average sunshine in February:
5h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
Ottawa, KS
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
18 days - Average sunshine days in March:
16 days - Average sunshine days in April:
15.3 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
22.6 days
The months with the most sunshine days are January and December (22.6 days).
The month with the least sunshine days is May (12.7 days).
Average UV index
Ottawa, 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
Ottawa, KS
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility
Ottawa, 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).
Ottawa, Kansas, USA
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