Since snow depth measurements began in Caribou in the 1940s, it has always held a substaintial snow pack for at least part of the winter. The average start date of a 1 inch snow pack is December 5th, and the average end date is April 10th. But significant variations have occurred, with the snow pack beginning or as early as November 12th (1968-69), as late as 1982-83 season snow pack starting Jan 16th (1982-83).

The deepest and most reliable snow pack is attained during the second half of February. Keep in mind these are averages, and that any one season is unlikely to follow them exactly.

Average Snow Depth and Probability of snow pack by date

Date	Avg Snow Depth (in inches)	Probability of having 1 inch on ground	Probability of having 10 inches on ground
Nov 15	1.2	36%	0%
Nov 20	1.8	48%	2%
Nov 25	2.4	58%	5%
Dec 1	4.2	71%	14%
Dec 5	5.4	76%	20%
Dec 10	5.9	79%	27%
Dec 15	7.1	84%	30%
Dec 20	9.1	91%	41%
Dec 25	10.2	94%	45%
Jan 1	12.8	98%	61%
Jan 5	13.9	97%	64%
Jan 10	15.4	99%	64%
Jan 15	16.3	99%	74%
Jan 20	17.0	98%	77%
Jan 25	17.4	99%	78%
Feb 1	18.1	99%	79%
Feb 5	18.4	100%	83%
Feb 10	19.2	100%	84%
Feb 15	19.8	100%	85%
Feb 20	21.3	100%	86%
Feb 25	21.8	99%	85%
Mar 1	21.3	99%	84%
Mar 5	20.1	99%	82%
Mar 10	19.7	98%	81%
Mar 15	18.4	98%	78%
Mar 20	16.4	96%	73%
Mar 25	13.8	90%	56%
Apr 1	8.6	86%	39%
Apr 5	7.2	78%	34%
Apr 10	5.8	71%	24%
Apr 15	3.4	60%	11%

Home | Local Forecast | Current Conditions | Weather Hangout
Weather Spotters | Weather Observers | Visit Our Office | Climatology
Hydrology | Marine Forecasts | Aviation Forecasts | Forecasting Tools
Satellite/Radar | Fire Weather | Related Links | Disclaimer | Webmaster

This site is best viewed at 800 by 600 resolution. For help with this click here.