The average daily low for the month was 22 degrees. That’s a lot warmer than the historic average low of 10 degrees. This December tied with 2005 and 1993 for the warmest low in the last 27 years. The record for the warmest December low was in 1991 at 29 degrees.
Overall, the average daily temperature for the month of December was 34.2 degrees. That’s warmer than the last three years but not as warm as 2014 or many other past Decembers. It’s warmer than the historical average December temperature of 31 degrees but it’s still only the 6th warmest December in the last 20 years. The warmest December on record was 1930 averaging 40 degrees.
Petersburg saw about average precipitation for the month. There was 10.98 inches, which is close to the average monthly precipitation of 10.8 inches. The record for most precipitation was December of 2006, which saw nearly 23 inches of precipitation.
Snow depth for December was lower than average at five inches. But it’s more than 2017, which had just four inches. The average monthly snow depth for December is 13 inches.