Narrative Summary - August 2007
August 2007 was cooler than normal, averaging 73.9ºF, 1.5º below normal (75.4ºF). The hottest August
(1967) averaged 81.5ºF, while the coolest (1964) averaged 69.8ºF. There were 16 days in August with
maximum temperatures >= 90ºF compared to an August normal of 17. There have been 54 days this year
with maximum temperatures >= 90ºF compared to a normal (through August) of 52 days. There were 3
days in August with maximum temperatures >= 100ºF compared to an August normal of 5. There have
been 16 days this year with maximum temperatures >= 100ºF compared to a normal (through August) of
12. The following daily temperatures records were established during August 2007:
New Old Date Category Record Record Year 11 Low Minimum 49 50 1985 19 Low Maximum 70 70 1968 Tie
Precipitation for August 2007 totaled 0.32 inches, 119% of normal (0.27 inch). The wettest August
(1977) received 1.36 inches, while the driest (1955 and 1988) received no precipitation. Total
precipitation for 2007 (through August) is 3.04 inches, 75% of normal (4.07 inches).
The average wind speed for August 2007 was 8.2 miles per hour (mph), which was 0.2 mph above normal
(7.9 mph). The windiest August (1996) averaged 9.5 mph, while the August with the lightest winds
(1956) averaged 6.0 mph. The peak gust for August 2007 was 40 mph on August 2. The record wind gust
for August was 66 mph in 1961.
The summer season of 2007 (June, July and August) was slightly warmer than normal, averaging 74.5ºF,
0.8º above normal (73.7ºF). The hottest summer (1958) averaged 78.2ºF, while the coolest summer
(1980) averaged 70.2ºF. The summer’s highest maximum temperature was 110ºF on July 5. The
highest maximum temperature ever recorded at the Hanford Meteorology Station (113ºF was recorded
on August 4, 1961, July 13, 2002, and July 23, 2006). Summer season precipitation totaled 0.84 inches,
88% of normal (0.95 inch). The wettest summer (1950) received 2.99 inches, while the driest (1973)
received only 0.03 inch.
The monthly climatological data summaries, as well as other information, are available on the Internet.
Address: http://hms.pnl.gov/
For additional information contact:
| Ken Burk | 373-3215 | |
| HMS Staff | 373-2716 |
Note: The information in this summary pertains specifically to
the Hanford Meteorology Station (HMS), which is located
approximately 25 miles northwest of Richland, Washington. No
attempt should be made to infer meteorological conditions at other
locations from these data.