OKC January 2007 Climate Summary


PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST TUE FEB 6 2006

...JANUARY 2007 MONTHLY SUMMARY...

WINTER MADE A QUICK RETURN WITH VERY COLD TEMPERATURES AND WINTER
PRECIPITATION. BUT A GOOD START TO THE NEW YEAR WITH ABOVE AVERAGE
PRECIPITATION.

FOR OKLAHOMA CITY:

AFTER THE FIRST 11 DAYS OF NEW YEAR... IT SEEMED A LOT LIKE THE WAY
2006 STARTED. THE HIGHEST TEMPERATURE DURING THIS TIME FRAME
OCCURRED ON THE 11TH WHEN THE MERCURY HIT 71 DEGREES. HOWEVER... A
VERY STRONG ARCTIC COLD FRONT MOVED INTO OKLAHOMA DURING THE EARLY
MORNING HOURS OF THE 12TH AND MOVED SOUTH THROUGH THE STATE DURING
THE DAY. THE HIGH TEMPERATURE AT OKLAHOMA OCCURRED SHORTLY AFTER
MIDNIGHT... WITH BELOW FREEZING TEMPERATURES BY DAWN. TEMPERATURES
DID NOT RISE ABOVE FREEZING UNTIL THE AFTERNOON OF THE 18TH WITH
REINFORCING BOUTS OF COLD AIR ARRIVING PERIODICALLY THROUGH THE END
OF THE MONTH. THERE WAS A BRIEF PERIOD TO THAW OUT FROM THE 23RD
THROUGH THE 27TH... BUT TEMPERATURES FELL AGAIN WITH ANOTHER SURGE
OF COLD AIR.

WITH THE WARM TEMPERATURES TO START THE MONTH AND COLD TEMPERATURES
TO END IT... THE MONTH ENDED UP NEAR AVERAGE FOR TEMPERATURES. HIGH
TEMPERATURES AVERAGED 45.6 DEGREES WHICH WAS 1.5 DEGREES BELOW
NORMAL. LOW TEMPERATURES AVERAGED 28 DEGREES... WHICH WAS ACTUALLY
1.8 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE OF 36.8 DEGREES
ENDED UP 0.1 DEGREES ABOVE NORMAL. THIS IS A FAR CRY FROM LAST
JANUARY WHEN THE AVERAGE TEMPERATURE WAS 47.7 DEGREES... OR 11
DEGREES ABOVE NORMAL. THE AVERAGE HIGH TEMPERATURE WAS THE COLDEST SINCE
2001 AND THE 2ND COLDEST SINCE 1993. THE AVERAGE TEMPERATURE WAS
ALSO THE COLDEST SINCE 2001. THERE WERE NO TEMPERATURE RECORDS
BROKEN DURING THE MONTH WHICH IS A CHANGE FROM THE LAST MANY MONTHS.

ONE VERY NICE CHANGE WAS THE ABOVE AVERAGE PRECIPITATION.
UNFORTUNATELY WITH THE COLD TEMPERATURES...MUCH OF THE PRECIPITATION
WAS OF THE FROZEN VARIETY. THREE MAIN PRECIPITATION BATCHES AFFECTED
OKLAHOMA... BEGINNING ON THE 12TH AND OCCURRING EVERY WEEK OR SO
AFTERWARD. FROM THE 12TH THROUGH THE 14TH... FREEZING RAIN TURNED TO
SLEET CAUSING MAJOR TRAVEL PROBLEMS AND SPORADIC POWER OUTAGES
ACROSS THE CITY. WHEN IT WAS ALL SAID AND DONE TWO INCHES OF SLEET
AND GLAZE ACCUMULATED... WITH LOCALLY HIGHER AMOUNTS ACROSS THE
CITY. SOME OF THE SLEET WAS ACCOMPANIED BY THUNDER AND LIGHTNING...
ESPECIALLY ON THE 13TH AND 14TH. ANOTHER ROUND OF WINTER
PRECIPITATION MOVED THROUGH ON THE 20TH... WITH MAINLY FREEZING
DRIZZLE AND SLEET... ALTHOUGH SNOW FELL FOR ABOUT AN HOUR DURING THE
WANING MOMENTS OF THE EVENT. YET ANOTHER WINTER STORM MOVED THROUGH
ON 27TH. ALTHOUGH WILL ROGERS WORLD AIRPORT ONLY RECORDED 0.3 INCHES
OF SNOW... SEVERAL LOCATIONS ON THE NORTH AND WEST SIDES OF THE CITY
REPORTED ONE TO TWO INCHES.

THE TOTAL PRECIPITATION FOR THE MONTH WAS 2.08 INCHES... WHICH WAS
0.80 INCHES ABOVE NORMAL. THE TOTAL SNOWFALL FOR THE MONTH WAS 2.9
INCHES. THIS ACTUALLY FELL SHORT OF THE AVERAGE BY 1.3 INCHES.
HOWEVER... WILL ROGERS WORLD AIRPORT REPORTED SNOW DEPTH OF AT LEAST
A TRACE FOR 11 DAYS... AND A DEPTH OF 2 INCHES FOR SEVEN DAYS. THAT
IS THE LONGEST STRETCH WITH ACCUMULATION ON THE GROUND SINCE LATE
2000 INTO EARLY 2001. SNOW WAS ON THE GROUND FOR 12 DAYS DURING THIS
EVENT... WITH A MAX DEPTH OF FOUR INCHES.
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About Putnam Reiter

Putnam has been storm chasing since 1990 and is a co-founder of Hook-Echo.com. For his day job, Putnam works in emergency management for information technology.
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