2025 Compare Climate & Weather:
Halifax, MA vs Ottawa, IL

Highlights

On average, there are 190 sunny days per year in Ottawa. Halifax averages 201 sunny days per year. The US average is 205 sunny days.

Ottawa, Illinois gets 37 inches of rain, on average, per year. Halifax, Massachusetts gets 51.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ottawa averages 21.1 inches of snow per year. Halifax averages 33.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ottawa, Illinois
Summer High: the July high is around 84 degrees
Winter Low: the January low is 14.4
Rain: averages 37 inches of rain a year
Snow: averages 21.1 inches of snow a year

Halifax, Massachusetts
Summer High: the July high is around 82.7 degrees
Winter Low: the January low is 17.4
Rain: averages 51.5 inches of rain a year
Snow: averages 33.8 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Ottawa is 7.0 (10=best), which means it is about average compared to other places in Illinois.

The annual BestPlaces Comfort Index for Halifax is 7.0 (10=best), which means it is more comfortable than most places in Massachusetts.

Today's Weather - Halifax, MA

39°F

Today's Weather - Ottawa, IL

54°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Halifax / Ottawa

July is the hottest month for Halifax with an average high temperature of 82.7°, which ranks it as warmer than most places in Massachusetts. In Halifax, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Halifax are June, August and September.

July is the hottest month for Ottawa with an average high temperature of 84.0°, which ranks it as cooler than most places in Illinois. In Ottawa, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ottawa are September, June and August.

January has the coldest nighttime temperatures for Halifax with an average of 17.4°. This is about average compared to other places in Massachusetts.

January has the coldest nighttime temperatures for Ottawa with an average of 14.4°. This is colder than most places in Illinois.

In Halifax, there are 6.4 days annually when the high temperature is over 90°, which is about average compared to other places in Massachusetts.

In Ottawa, there are 13.0 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Halifax, there are 138.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Massachusetts.

In Ottawa, there are 131.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Halifax, there are 1.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Massachusetts.

In Ottawa, there are 9.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

March is the wettest month in Halifax with 5.4 inches of rain, and the driest month is February with 3.8 inches. The wettest season is Summer with 27% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 51.5 inches in Halifax means that it is one of the wettest places in Massachusetts.


May is the wettest month in Ottawa with 4.2 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 37.0 inches in Ottawa means that it is drier than most places in Illinois.

May is the rainiest month in Halifax with 12.0 days of rain, and September is the driest month with only 9.3 rainy days. There are 129.4 rainy days annually in Halifax, which is rainier than most places in Massachusetts. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 24% chance of a rainy day.

May is the rainiest month in Ottawa with 11.4 days of rain, and February is the driest month with only 8.0 rainy days. There are 116.3 rainy days annually in Ottawa, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 24% chance of a rainy day.

An annual snowfall of 33.8 inches in Halifax means that it is less snowy than most places in Massachusetts.

An annual snowfall of 21.1 inches in Ottawa means that it is about average compared to other places in Illinois.

January is the snowiest month in Halifax with 10.8 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Ottawa with 7.5 inches of snow, and 5 months of the year have significant snowfall.