2000 WEATHER SUMMARY
·
The warmest
month of the year was June not July. It
was the coolest July on record at this station and the coolest at Reagan
National since 1918 and Baltimore since 1891!
·
December was the
coldest month of the year and was the coldest December on record since 1989.
·
The years highest maximum temp. of
95°F was the lowest on record here since the
year 1989 when the years maximum was 94°F.
· No measurable rain for 23 days (October 17th to
Highest maximum temp. of
95°F was recorded on June 11th. The record maximum at this station is 102°F
recorded on
Lowest minimum temp. of 9°F on January 22nd which was +1.3°F above the average recorded minimum for January but was the lowest January minimum since 1997.
There were only 21 days that were equal to or greater than 90°F for the maximum temperature. This year had the least >= 90°F days since 1996 which had only 16 days. The average is 30 days.
There were 87 days which were less than or equal to 32°F for the minimum temperature. This year had the most <= 32°F days since 1996 which had 97 days. The average is 84 days.
MONTH
The month of December had the greatest negative departure with a 8.2° departure on the average monthly mean temperature.
The month of March had the greatest positive departure of +6.5°F on the average monthly mean temperature.
33°F on Dec. 8th was the second lowest high minimum ever recorded for Dec. at this station. The record is 31°F set in 1989.
DAY
The 38°F temperature range on April 6th
was the greatest daily temp. range for the year.
The 3°F temperature range on March 21th,
and April 18th was the lowest daily temp. range
for the year.
YEAR
Total precipitation measured 45.96 inches, a departure of +2.00 inches.
Precipitation total from October was 0.06 inches, a departure of 3.47 inches and the driest month ever recorded at this station in the last 20 years.
The year will go on record as wetter than average in precipitation but it was a very dry fall period.
MONTH
The greatest number of days with measurable precipitation in one month was 16 days in June.
July had the greatest total rainfall: 6.73 inches, a +2.62 inch departure.
October had the least total rainfall: 0.06 inches, a 3.41 inch departure.
DAY
The greatest calendar day rainfall for the year was 2.20 inches which occurred on April 17th.
September 25th and 26th had the greatest 24-hour rainfall for the year: 2.28 inches.
HOUR
The greatest one-hour rainfall was 1.74 inches recorded on July 28th. This occurrence was the greatest one-hour rainfall rate on record. Records on rainfall intensity began in 1992.
The greatest
five-minute rainfall was 0.47 inches
which fell on September 2nd and was the greatest in a 5-minute
period since
YEAR
The years total snowfall at this station was 22.9 inches; the most since 1996 (57.8 inches).
The largest snow of the year was 10.8 inches on January 25th.
MONTH
January had the greatest monthly snowfall total for the year with 17.3 inches.
STORM
The greatest snowfall in one storm was observed on Jan. 25th: 10.8 inches.
The greatest calendar day snowfall was observed on Jan. 25th: 10.8 inches.
The greatest 24-hour snowfall was observed on Jan. 25th: 10.8 inches.
The greatest
snowfall on the ground at any one time in the year at sunset was January 25th
with 12.1 inches. On
YEAR
The greatest
wind was recorded on
The windiest
month of 2000 was January.
YEAR
January 15th and December 13th both were tied for the year's highest barometric pressure at 30.73 inches.
March 28th had the year's lowest barometric pressure, 29.31 inches.
MONTH
The cloudiest
month was April which was also the
cloudiest of any month at this station since November 1992.
The clearest
month was October which was also the
clearest of any month since June 1996.