Climate Summary for Saint Johnsbury, VT
1895 to 2023

Summary
(monthly means)
Normals and Extremes
(daily means)
Trends
(yearly means)

  Please note:
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Mean Values for each Day
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The Averages/Extremes chart (immediately above) shows the mean temperature for each day of the year. The highest values are red, the average values are orange, and the lowest values are blue.

Mean Temperature (Tmean) is the average of the high and low temperatures each day.


SpringFall 
Normal Dates
Ave. Mean Temp. = 50 (F)Apr 30Oct 10 
Ave. Mean Temp. = 65 (F)Jun 18Aug 29 
Ave. Low Temp. = 32 (F)Apr 19Oct 29 
Ave. High Temp. = 40 (F)Mar 18Nov 23 

The Normal Dates table (immediately above) shows the average Spring and Fall dates when the high, mean, and low temperatures reach specified values. (High and Low temperature data are shown below.)


The Averages/Records chart (immediately above) shows the warmest high temperatures in red, the average high temperatures in orange, the average low temperatures in green, and the coolest low temperatures in blue for each day of the year.


The Daily Temperature table (immediately above) shows the warmest and coolest high and low temperatures, and the year that they occured. Values are in Fahrenheit and Celcius.


The Number of Days table (immediately above) shows the number of days each month when the specified quantity is less than or equal to (≤) a value, and when the specified quantity is greater than or equal to (≥) a value.


The Averages/Extremes chart (immediately above) shows the precipitation for each day of the year. The highest values are red, the average values are orange, and the lowest values are blue.

Precipitation (Prcp) includes rain, as well as the water content of snow and frozen precipitation that falls (known as "melted precipitation").


The Greatest table (immediately above) shows the greatest daily values of precipitation and snowfall, and the year that they occured. Values are in Inches and metric units.


The Averages/Extremes chart (immediately above) shows the snowfall for each day of the year. The highest values are red, the average values are orange, and the lowest values are blue.

Snowfall (Snow) is the depth of snow that falls during a 24 hour day.


The Averages/Extremes chart (immediately above) shows the snow depth for each day of the year. The highest values are red, the average values are orange, and the lowest values are blue.

Snow Depth (Snwd) is the height of snow on the ground. Values are affected by several factors that include the moisture content of new snow, melting and compaction.


EarliestAverageLatest 
Last Spring Dates
Temperature ≤ 32 (F) Apr 27 May 19 Jun 20 
Year 1954 1917 
Snow ≥ 1 (in) Mar 09 Apr 06 May 20 
Year 1994 1911 
Snow depth ≥ 1 (in) Mar 07 Apr 03 Apr 29 
Year 1911 1986 

First Fall Dates
Temperature ≤ 32 (F) Sep 09 Sep 26 Oct 31 
Year 1938 2023 
Snow ≥ 1 (in) Oct 07 Nov 15 Dec 27 
Year 1953 1912 
Snow depth ≥ 1 (in) Oct 09 Nov 20 Dec 24 
Year 1979 1999 

The Spring and Fall Dates table (immediately above) shows the earliest, average, and latest dates when the specified weather event occurs. The year of the earliest and latest dates is also shown.