The following table lists the Meteorological Extremes (oF) at Brookhaven National Laboratory. The period covered is from 1949 to 2006.
|
Absolute Highest Temperature |
100.5 F July 21 1991 & July 22, 1957 |
|
Absolute Lowest Temperature |
-23.0 F January 22, 1961 |
|
Average Yearly Temperature |
50.1 F |
|
Coldest Year |
1967 (Avg. Temp. = 47.5 F) |
|
Warmest Year |
1998 (Avg. Temp. = 53.1 F) |
|
Greatest Daily Temperature Range |
56.5 F |
|
Least Daily Temperature Range |
0.5 F |
|
Maximum Annual Degree Days |
6753 for 1967 |
|
Maximum Monthly Degree Days |
1414 in January 1977 |
|
Average Annual Precipitation |
48.56" |
|
Maximum Annual Precipitation |
68.66" in 1989 |
|
Minimum Annual Precipitation |
34.35" in 1965 |
|
Maximum Monthly Precipitation |
22.14" in October 2005 |
|
Minimum Monthly Precipitation |
Trace in June 1949, 0.18” October 1963 |
|
Maximum Daily Precipitation |
9.02" September 10 - 11, 1954 Hurricane Edna 9.00” October 14th, 2005 |
|
Maximum Hourly Rainfall |
2.10" September 10 - 11 , 1954 Hurricane Edna |
|
Maximum Seasonal Snowfall |
90.8” 1995-96 |
|
Minimum Seasonal Snowfall |
4.5” 1997-98 |
|
Maximum Monthly Snowfall |
32.5" February 1967 |
|
Maximum Daily Snowfall |
19.0" February 1978 |
|
Maximum Snowfall, Single Storm |
23.0" February 1978 |
|
Longest Period Snow Cover |
55 days (Dec. 26, 1947 - February 18, 1948) |
|
Absolute First Day of Snowfall |
October 17 |
|
Absolute Last Day of Snowfall |
April 27 |
|
Peak Wind Speed |
125 mph - August 31, 1954 Hurricane Carol |
|
Lowest Barometric Pressure |
28.375" September 12, 1960 Hurricane Donna |