Ottawa, Kansas, USA is the location of CMC’s satellite weather feed. The map shows the current & 7-day weather forecast, local radar update and weather alerts for Ottawa. The ticker alternates between national headlines and special weather statements in a bottom-up crawl format. Click on the image for more information.
Weather by Month
The weather in Ottawa is highly variable, with significant seasonal variation in temperature, humidity, wind speed and precipitation. For each month of the year, we provide average high and low temperatures in degrees Celsius (degF), along with monthly and annual counts of days with frost and cold weather.
In addition to temperatures, you’ll find a list of the average hourly weather conditions, including wind speed and direction and rain or snowfall. These statistics are based on wide-area hourly averages of weather conditions that have been calculated at 10 meters above the ground, courtesy of Environment and Climate Change Canada’s National Weather Service.
For the weather by month, we also include a dew point temperature, based on how much perspiration is expected to evaporate from your skin. This determines how drier or humid the weather feels, a factor that can make a big difference in your comfort level.
During the warmer months, the temperature in Ottawa typically ranges from 20°C to 40°C. The hottest month of the year is July, with an average maximum temperature of 95°C.
The cooler months of the year are January and February, with an average minimum temperature of 0°C. Winters are generally milder in Ottawa than in the prairie cities of Calgary and Winnipeg, with less smog here than in those two cities.
While the city is usually frost-free in spring, the first frost typically occurs around April 29 and the last frost on average occurs in October 6. Frost normally returns to Ottawa in late fall, by early November.
In the summer, you’ll find the weather in Ottawa to be pleasantly warm and sunny, with a daily average of 7 hours of daylight. However, the length of daylight varies significantly from month to month, with the shortest day being December 21 and the longest being June 21.
The weather in Ottawa can vary greatly during the year, with a drier and wetter period in the summer and a colder and drier period in the winter. You’ll find monthly and yearly averages of precipitation here, categorized into rain alone, snow alone, or a mixture of the two.
Weather by Day
Weather in Ottawa is pretty cool year round, but the summer months can be hot and humid. The hottest temperatures are usually in the middle of July. The coldest are usually in January. The winters are chilly and damp, especially in the early morning hours. The best time to visit is late spring and early fall. The coldest weather isn’t just a nuisance, it can be dangerous. The city has several meteorological offices that monitor the sky and issue warnings. It is also a good idea to bring along your own weather proof clothing. The most important thing is to plan ahead. This will allow you to get the most out of your time in Ottawa and leave your worries at home. There are many ways to do this, but I would recommend starting with a weather app or website that offers personalized weather forecasts for your area.
Weather by Hour
A slew of weather geeks have been drooling over the satellite weather ottawa and its kin for years. As a nod to the good ol’ time honoured tradition, we’ve put together a list of must-read satellite weather ottawa resources which includes this very site, along with a few other must sees on our radar screen. Among them is this page showcasing the most recent top of the crop weather and solar data as well as a few weather ottawa tidbits spotted in the wild. The following list is not a comprehensive, by no means exhaustive, collection of satellite weather ottawa otawxs, but is intended to provide a rudder to navigate the often murky waters of the world of weather. We’ll keep you posted. You can also sign up for our newsletter to get the latest updates directly in your inbox!
Weather by Season
Weather conditions in Ottawa vary significantly over the course of the year. From spring to fall, the city experiences four distinct seasons with a wide range of temperature and precipitation.
Temperatures in Ottawa tend to be warm throughout the year. The hottest month of the year is July with an average daily high temperature above 68degF, while the coldest month of the year is January with an average daily low temperature below 33degF.
Rainfall in Ottawa also varies substantially over the course of the year. From March 14 to December 4, the most common form of precipitation is rain alone, while snow alone is the most common for 3.3 months and mixed (both rain and snow) occurs for 8.7 months.
Snowfall in Ottawa is less common in the winter than it is in the summer, but snowfall is still significant. The month with the least amount of snow is November, while the month with the most amount of snow is January.
Cloud cover in Ottawa also varies considerably over the course of the year. From May 24 to October 26, the clearer part of the year is observed, while from November 5 to March 11, the cloudier part of the year is present.
During the brighter part of the year, average shortwave solar energy per square meter exceeds 5.6 kWh. On the other hand, during the darker part of the year, average shortwave solar radiation per square meter falls below 2.3 kWh.
Wind speeds in Ottawa are fairly variable throughout the year. The windiest months are February and April, with an average daily wind speed of more than 5.5 miles per hour.
Humidity in Ottawa varies substantially over the course of the year. The driest period of the year lasts for 3.4 months, from June 5 to September 16, during which time the comfort level is dry, oppressive, or miserable at least 5% of the time.
The percentage of days in which various types of precipitation occur, excluding trace quantities such as rain alone, snow alone, and mixed (both rain and snow fell on the same day). We use this metric to highlight seasonal variation, not just monthly totals.