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Ottawa (KS) Weather and Climate: A Comprehensive Guide

The temperature in Ottawa can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It receives a moderate amount of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Ottawa can expect significant temperature changes throughout the year. On average, daytime temperatures range from a very warm 32°C in July to a chilly 5°C in January.

Nighttime temperatures can drop, with average lows reaching -7°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Ottawa experiences moderate precipitation patterns, averaging 997 mm yearly. The seasons in Ottawa, bring significant changes in precipitation. The wettest month, May, receives high rainfall, with an average of 138 mm of precipitation. This rainfall is distributed across 14 rainy days.

In contrast, the driest month, January, experiences much less snow/rainfall, totaling 19 mm over 5 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Ottawa Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Ottawa, summer days are longer and more sunny, with daily sunshine hours peaking at 10.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.0 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Topeka, the United States of America (59 KM, 37 Miles).

Daily hours of sunshine

Data from: Topeka, the United States of America (59 KM, 37 Miles).

Forecast for Ottawa (KS)

Mon   Dec 23
12°C | 4°C
W 3 m/s
broken clouds and no rain

broken clouds and no rain

Tue   Dec 24
8°C | 0°C
NE 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Wed   Dec 25
9°C | 0°C
E 4 m/s
overcast and no rain

overcast and no rain

The best time of year to visit Ottawa in the United States of America

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Ottawa?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Ottawa?
    July has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Ottawa?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Ottawa?
    May tops the wettest month list with 138 mm of rainfall.
  • Which is the driest month in Ottawa?
    January is the driest month with 19 mm of precipitation.
  • Which is the sunniest month in Ottawa?
    July is the sunniest month with an average of 327 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.