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Weather

February 2018

Third Warmest February on Record

By Russell Russ

Much like last year, this February started off very winter-like. All ponds were iced over, temperatures were seasonably cold, there was snow on the ground and snow was falling. Through two-thirds of the month, winter, which took hold in late December and continued all through January, had a firm grip on the weather. Then came the big warm up. The last week of the month was more like late spring than the deepest part of winter. Just like last year, by the end of the month we had seen record temperatures, the snow was all gone and the ponds were free of ice. Even the sap was flowing like it was late spring. It was a great month for maple syrup production. Spring had arrived. For the moment anyway.

The month’s low temperature of 1 degree was observed on February 3. The high temperature of 70 was observed on February 21. The average monthly mean temperature was 29.9 degrees, 8 degrees above normal. It was the third warmest February over the last 87 years. The warmest Februarys on record were in 2002 with 30.7 and 2017 with 30.2 degrees. There were three daily record high temperatures this month; Feb 12 with 52 degrees (was 45 in 1932), Feb 20 with 62 (was 57 in 1939) and Feb 21 with 70 (was 58 in 1953). The two coldest Februarys, also the two coldest of any month, were February 1934 with 9.0 degrees and February 2015 with 10.9 degrees. The average mean temperature for February is 21.9 degrees.

The total precipitation recorded for the month was 5.42 inches, 1.79 inches above normal. The 2018 calendar year, January and February, total precipitation amount of 10.97 inches is 3.33 inches above normal. Drought is currently not a concern.

The monthly snowfall total of 16.5 inches was 4.1 inches below normal. A majority of the snowfall came during the first half of the month. The 2018 calendar year snowfall total through February is 36.7 inches. This is 4.8 inches below normal, but 7.4 inches more than last year at this time. The snowfall total for this winter season, October through February, is 53.1 inches. This is 12.9 inches below normal and 13 inches less than last winter at this time.

A look ahead to March shows that spring in fact was not just around the corner and that any snowfall deficit would soon be completely changed to a large snowfall surplus. The first day of March was warm and there was no snow on the ground. Then, after three nor’easters and potentially a fourth by the third week of the month, things were very, very wintery once again.

Temperatures were running about 2 degrees colder than normal and it would be an understatement to say that Norfolk saw some snowfall in March. As of March 15, just after the third storm, March’s snowfall total was 42.7 inches. This is 25.2 inches above the monthly normal and by mid-month this March was already the fifth snowiest over the last 87 years. By mid-month Norfolk was just 4 inches away from recording its second snowiest March over the last 87 years. Sorry, there are no records at this weather station from the Blizzard of 1888. The snowiest March on record was in 1956 when 73.6 inches were recorded. Pretty good chance we will not reach that amount this year, but coming in as second snowiest seems very likely.

January 2018

Fairly Typical January (Winter) Weather

By Russell Russ

During all of 2017 Norfolk only reached zero or below zero five times. January 2018 has already matched that. In January 2017 Norfolk had only three days with low temperatures in the single digits or lower. This January had ten days in the single digits or lower. December was also colder than normal. Of those five days in 2017 with temperatures of zero or below, four of them occurred in December. Winter is back, at least in December and January it was.

January’s average mean temperature of 19.8 degrees was just 1.0 degree below normal. Norfolk’s warmest January on record was in 2002 with an average temperature of 31.7 degrees and the coldest was in 1982 with 11.7 degrees. The month’s high temperature of 58 degrees was observed on January 12. This was a record high for that date, beating the old high of 52 set in 1932 and 2017. The low temperature of minus 10 degrees was observed on January 7. There were two low temperature records this month, January 1 with minus 8 tied the previous 1964 record and the minus 10 on January 12 surpassed the previous record of minus 7 set in 1942.

January’s total precipitation of 5.55 inches was 1.54 inches above normal. Not that impressive, but it was Norfolk’s 16th wettest January in the last 87 years. The wettest January was in 1979 with 11.77 inches. The monthly snowfall total of 20.2 inches was just 0.7 inch below normal. The snowiest January was in 1987 with 50.5 inches. The 2017-2018 winter season, October through January, snowfall amount of 36.6 inches is 8.8 inches below normal.

The biggest weather story from January was probably the flooding that occurred after the rapid warm-up and heavy rainfall on January 11-13. Going from record lows to record highs in a matter of days, plus getting 2.62 inches of rain on top of our 10 inches of snow on the ground certainly added to flooding concerns. For people along the Housatonic and Connecticut Rivers it was ice jam issues, fairly uncommon for us here in Southern New England.

A look at February’s weather through mid-month shows that the wild swings in temperature and some fairly impressive rainfall totals continue to be a factor. Temperatures were running nearly 4 degrees above normal with precipitation already about a half inch above the normal monthly amount. With record warmth on February 12 and more in the forecast for February 20-22 it seems our up and down winter will continue. On the plus side, the February warm-up has resulted in Great Mountain Forest’s second earliest maple sap collection in over 70 years.

January 2018

An early look at January’s weather

By Russell Russ

A quick look at the weather for the first half of January. During the first week of January there were three days with below zero temperatures and two days with zero degree temperatures. By the middle of the month there were additional days with lows of 1, 2 and 3 degrees. It was definitely a cold start to the new year. By comparison, the entire year of 2017 had only four days below zero and one day at zero – and all but one of those occurred during the last four days of the year.

A temperature of minus 8 degrees on January 1 tied a 1964 record low for that date. A low of minus 10 on January 7 surpassed the old 1942 record of minus 7. By January 10 Norfolk’s average temperature was nearly 14 degrees below the normal for January. Then, oddly enough on January 12, Norfolk set a daily high temperature record with 58 degrees, easily beating the old 1932 and 2017 record of 52. It was a brief warm-up though, between January 13 and 14 the temperature went from the upper 50’s to a cold 1 degree.

Through mid-month there had been two snowstorms that brought the monthly snowfall total to 19.4 inches, almost the average amount for the entire month. Then there was the January 12-13 rain storm that dumped 2.62 inches of rain. Just prior to the big warm-up and heavy rains there was 10 inches of snow on the ground with a water equivalent of 2.4 inches. The heavy rains combined with the rapid snowmelt (it all melted) resulted in flooding conditions in many locations in the state. By mid-month the total precipitation amount was 4.09 inches, already a little above the normal for the entire month of January.

It was a wild weather beginning for 2018. If the rest of the year follows suit then it should prove to be much more exciting than 2017.

Stay tuned for a complete monthly weather summary for January. See “Past Narratives” for past weather summaries, including November and December 2017 and a Year Review for 2017. Also check out the “Weather Data Sheets” for other weather summary data as soon as it becomes available.