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Saint John County (Saint John)
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Weather in Saint John County for December 2025

Your guide to Saint John County weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Snow Squall Warning - See hour by hour.

    • Snow Forecast ❄️

  • Saint John County typically experiences moderate snowfall in December, with an average of 8 snowy days.
    According to Saint John County snow forecast for December 2025, 2 snowy days are expected in the next 2 weeks. The closest date with snow is Monday, 15 December.

    • Temperatures

  • Until now, December 2025 in Saint John County is slightly cooler than the historical average by -1.1 °C.

  • Expect cooler weather in the next days in Saint John County with the forecast suggesting a temperature of -0.8 °C, lower than the historical average.

  • In general, the average temperature in Saint John County at the beginning of December is 2.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 4.3 °C by the end of December.

    • More

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Average dry days
12
Dry days
Average rainy days
11
Rainy days
Average snowy days
8
Snow days
Average temperatures
3°/-2°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Saint John County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
7°
2
Light rain shower
4°
3
Light drizzle
2°
4
Heavy snow
2°
5
Overcast
2°
6
Partly cloudy
1°
7
Sunny
0°
8
Sunny
-0°
9
Overcast
1°
10
Light drizzle
7°
11
Light rain shower
11°
12
Weather Alert Overcast
-4°
13
Sunny
0°
14
Overcast
-1°
15
Light freezing rain
-6°
16
Partly cloudy
-5°
17
Light freezing rain
5°
18
Patchy rain possible
3°
19
Patchy rain possible
7°
20
Partly cloudy
-4°
21
Cloudy
-6°
22
Sunny
-6°
23
Sunny
-4°
24
Heavy snow
3°
25
Patchy rain possible
7°
26
Patchy rain possible
4°
27
Light drizzle
4°
28
Light drizzle
2°
29
Heavy snow
3°
30
Light sleet
6°
31
Overcast
4°

Temperatures trend during December in Saint John County

See the weather trend as well as the moving average line

December weather in Saint John County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 7° /1° 15.2 mm 0 cm
2 Dec. Light rain shower
Light rain shower
 4° /-2° 9.8 mm 4.3 cm
3 Dec. Light drizzle
Light drizzle
 2° /-2° 43.6 mm 0 cm
4 Dec. Heavy snow
Heavy snow
 2° /-4° 6.2 mm 4.9 cm
5 Dec. Overcast
Overcast
 2° /-6° 38.3 mm 1.8 cm
6 Dec. Partly cloudy
Partly cloudy
 1° /-7° 0 mm 0 cm
7 Dec. Sunny
Sunny
 0° /-6° 0 mm 0 cm
8 Dec. Sunny
Sunny
 0° /-8° 19 mm 9.8 cm
9 Dec. Overcast
Overcast
 1° /-8° 0 mm 0 cm
10 Dec. Light drizzle
Light drizzle
 7° /-1° 21.2 mm 7.9 cm
11 Dec. Light rain shower
Light rain shower
 11° /1° 40 mm 0 cm
12 Dec. Overcast
Overcast
 -4° /-9° 0 mm 0 cm
13 Dec. Sunny
Sunny
 0° /-8° 0 mm 0 cm
14 Dec. Overcast
Overcast
 -1° /-5° 0 mm 0 cm
15 Dec. Light freezing rain
Light freezing rain
 -6° /-9° 0.3 mm 0.2 cm
16 Dec. Partly cloudy
Partly cloudy
 -5° /-10° 0 mm 0 cm
17 Dec. Light freezing rain
Light freezing rain
 5° /-8° 0.2 mm 0 cm
18 Dec. Patchy rain possible
Patchy rain possible
 3° /0° 0.1 mm 0 cm
19 Dec. Patchy rain possible
Patchy rain possible
 7° /-2° 1 mm 0 cm
20 Dec. Partly cloudy
Partly cloudy
 -4° /-6° 0 mm 0 cm
21 Dec. Cloudy
Cloudy
 -6° /-9° 0 mm 0 cm
22 Dec. Sunny
Sunny
 -6° /-11° 0 mm 0 cm
23 Dec. Sunny
Sunny
 -4° /-10° 0 mm 0 cm
24 Dec. Heavy snow
Heavy snow
 3° /-4° 5.8 mm 1.9 cm
25 Dec. Patchy rain possible
Patchy rain possible
 7° /2° 0.2 mm 0 cm
26 Dec. Patchy rain possible
Patchy rain possible
 4° /0° 0 mm 0 cm
27 Dec. Light drizzle
Light drizzle
 4° /-2° 2 mm 0 cm
28 Dec. Light drizzle
Light drizzle
 2° /-3° 2.5 mm 0 cm
29 Dec. Heavy snow
Heavy snow
 3° /0° 6.1 mm 2.2 cm
30 Dec. Light sleet
Light sleet
 6° /2° 17.7 mm 0 cm
31 Dec. Overcast
Overcast
 4° /1° 3 mm 0 cm
Next
Important Notice
Our weather forecast for Saint John County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint John County forecast closer to your planned date for the most up-to-date weather information.
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Saint John County in December - FAQ

What are the expected maximum and minimum temperatures in Saint John County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Saint John County during December?
Significant rainfall exceeding 303.4 mm is expected in Saint John County during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Saint John County in December 2025?
Saint John County experiences an average snowfall of 51.885 cm during December, occurring over 8 days.
What are the typical wind conditions in Saint John County during December?
The average wind speed in Saint John County during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Saint John County snow forecast December 2025

Track daily snowfall levels and discover Saint John County’s snowy potential this December ❄️
On average, Saint John County sees 8 snowy days during December, with approximately 51.9 cm of total snowfall.

December rainfall patterns in Saint John County

Explore the daily rainfall trends and prepare for Saint John Countys December weather 💧
Typically, Saint John County has 11 rainy days in December with a total of 303.4 mm of rainfall.
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Location coordinates Where is Saint John County?

Get accurate weather forecasts for Saint John County, located at latitude 45.271 and longitude -66.056. Stay updated with localized weather information tailored for Saint John County.

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