University of Delaware
Office of Public Relations
UpDate - Vol. 16, No. 17, Jan. 23, 1997
Just the facts: State climatologist releases year-end weather stats
During 1996, the state of Delaware was much wetter and
slightly cooler than normal, according to state climatologist
Daniel J. Leathers, geography.
For the year as a whole, the average temperature was 54.1
degrees Fahrenheit, approximately 0.6 degrees Fahrenheit below
the 102-year average. Statewide precipitation averaged 58.75
inches, more than 15 inches above the 102-year mean, making 1996
the third wettest year since 1895.
Leathers also released the following information:
* The year began with a very snowy January, highlighted
by a record 24-hour snowfall that resulted in 22 inches of
snow recorded on Jan. 7 in Wilmington. Unusually heavy
snowfall continued to buffet the state through February, even
though average monthly temperatures for January and February
were slightly above normal.
* The spring season began with temperatures more than
four degrees Fahrenheit below normal during March. As the
spring progressed, temperatures moderated, with heavy
precipitation falling during both April and May. In fact, the
May statewide precipitation of 6.4 inches was the seventh
highest total in 102 years.
* Temperatures during the summer season of June, July and
August averaged approximately 0.5 degrees below the 102-year
average. More impressively, temperatures of 90 degrees
Fahrenheit or above were only recorded on seven days in
Wilmington during 1996. The normal number of days with
temperatures equal to or greater than 90 degrees Fahrenheit
for a year is 20.
* Precipitation during the summer months was heavy, with
totals averaging 5 inches greater than normal on a statewide
average. This made the summer of 1996 the 15th wettest since
1895.
* The autumn season continued cool and wet across
Delaware. Temperatures for the period from September through
November averaged 2.0 degrees Fahrenheit below the 102-year
average, making the autumn of 1996 the 13th coolest since
1895.
* November temperatures were more than 6.2 degrees
Fahrenheit below the 102-year average, making it the fourth
coldest November on record. Average statewide precipitation
was 1.7 inches above normal during the autumn, keeping the
soil saturated throughout the season. September was especially
wet with 171 percent of normal precipitation falling across
the state-the 10th wettest September total in the last 102
years.
* December began the winter season of 1996-97 with warm
and very wet conditions across the entire state. Temperatures
during December averaged 3.6 degrees Fahrenheit above normal,
the 11th warmest December in 102 years. The statewide December
precipitation of 7.3 inches was 203 percent of normal, making
this month the third wettest December for the state since
1895.
The National Weather Service long-lead forecast suggests
that there is no reason to expect substantial temperature or
precipitation anomalies during the period through the end of
March 1997, Leathers said, adding that the best extended estimate
of temperature and precipitation is that they should be near
climatological normals through March.
-Beth Thomas