What’s the climate like in Saint John?
The current climate of Saint John features average monthly temperatures ranging from highs of 34°C during the day to lows of 3°C. The average yearly temperature is around 18°C. At night, temperatures in the colder months average around -5°C and in the warmer months around 20°C.
The highest temperature recorded in Saint John in recent years was 40°C in June 2015. The lowest daytime temperature recorded was -9°C in January 2017.
On average, Saint John gets 453 mm of precipitation each year. Of this, about 315 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Saint John?
The best time to visit Saint John for sunny weather is May through October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Saint John. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Saint John
The climate table of Saint John shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 3 | 7 | 13 | 16 | 22 | 29 | 34 | 32 | 27 | 18 | 10 | 4 |
| Temp. min (°C) | -4 | -2 | 2 | 5 | 9 | 15 | 20 | 18 | 13 | 6 | 0 | -3 |
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| Precipitation (mm) | 36 | 32 | 61 | 59 | 62 | 16 | 12 | 20 | 42 | 41 | 37 | 35 |
| Snow (cm) | 73 | 70 | 34 | 10 | 0,4 | 0 | 0 | 0 | 0,1 | 4,1 | 52 | 72 |
| UV Index | 4 | 5 | 7 | 8 | 9 | 8 | 9 | 8 | 7 | 5 | 4 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 18°C
- Highest temperature: 34°C in July
- Lowest temperature: 3°C in January
- Precipitation*: 453 mm per year, averaging 38 mm per month
- Snowfall: 315 cm per year
- Driest months: 12 mm in July, 16 mm in June and 20 mm in August
- Wettest months: 62 mm in May, 61 mm in March and 59 mm in April
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Saint John
This graph shows the average maximum temperatures per month in Saint John, Utah. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Saint John
This graph shows how much precipitation Saint John, Utah, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Saint John
This graph shows how much snow Saint John, Utah, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Saint John
This graph shows the average UV index per month in Saint John, Utah. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Saint John
This graph shows the average yearly temperature in Saint John, Utah. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Saint John
This chart shows the total yearly precipitation in Saint John, Utah, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Saint John
This chart shows the total yearly snowfall in Saint John, Utah, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Saint John
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Average Weather in Saint John by Month
Click on a month below to see detailed weather info for Saint John. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
