...1999 CLIMATOLOGICAL AND SIGNIFICANT WEATHER SUMMARY FOR TUPELO REGIONAL AIRPORT...
1999 WILL GO DOWN IN THE RECORD BOOKS AS A WARMER THAN
AVERAGE YEAR. EVERY MONTH WAS ABOVE NORMAL EXCEPT FOR MARCH...WHICH WAS
ACTUALLY COOLER THAN FEBRUARY. PRECIPITATION WAS NEAR NORMAL...BUT THIS
IS
DECEIVING SINCE ALMOST 30 INCHES OF RAIN FELL IN THE
FIRST FOUR MONTHS OF THE YEAR...AND ONLY 0.44 INCHES FELL IN AUGUST AND
SEPTEMBER COMBINED. BELOW IS A TABLE OF EACH MONTHS AVERAGE TEMP
AND PRECIP:
| MONTH | AVGTEMP | DEPARTURE | RAINFALL | DEPARTURE | RAINDAYS |
| JANUARY | 47.3 | +7.4 | 11.58 | +6.69 | 14 |
| FEBRUARY | 50.3 | +6.0 | 2.87 | -1.85 | 13 |
| MARCH | 50.0 | -3.7 | 8.03 | +1.96 | 15 |
| APRIL | 66.6 | +4.2 | 7.03 | +1.78 | 10 |
| MAY | 70.4 | +0.2 | 3.25 | -2.47 | 11 |
| JUNE | 78.2 | +1.0 | 6.94 | +3.10 | 13 |
| JULY | 83.0 | +2.4 | 2.40 | -1.90 | 10 |
| AUGUST | 82.7 | +3.1 | 0.39 | -2.66 | 2 |
| SEPTEMBER | 74.5 | +0.5 | 0.05 | -3.55 | 1 |
| OCTOBER | 63.6 | +1.2 | 1.67 | -1.75 | 3 |
| NOVEMBER | 56.2 | +3.6 | 2.04 | -2.81 | 7 |
| DECEMBER | 45.6 | +2.1 | 3.03 | -3.13 | 10 |
| YEARLY | 64.0 | +2.3 | 49.28 | -6.59 | 109 |
THE WIDE RANGE OF TEMPERATURES AND CONDITIONS IN ANY GIVEN YEAR OFTEN LEADS TO RECORDS BEING SET OR TIED. BELOW IS A LIST OF RECORDS SET OR TIED (DOES NOT INCLUDE COOLEST HIGHS OR WARMEST LOWS) IN 1999:
JAN 04...NEW RECORD LOW....13 DEGREES...PREVIOUS RECORD
NOT AVAILABLE
FEB 07...NEW RECORD HIGH...76 DEGREES...PREVIOUS RECORD
73 SET IN 1937
FEB 11...TIE RECORD HIGH...78 DEGREES...PREVIOUS RECORD
78 SET IN 1938
APR 10...NEW RECORD HIGH...86 DEGREES...PREVIOUS RECORD
85 SET IN 1995
AUG 19...NEW RECORD HIGH..104 DEGREES..PREVIOUS RECORD
103 SET IN 1980
NOV 07...NEW RECORD HIGH...81 DEGREES...PREVIOUS RECORD
80 SET IN 1934
NOV 10...NEW RECORD HIGH...79 DEGREES...PREVIOUS RECORD
78 SET IN 1949
...OTHER SIGNIFICANT WEATHER INFORMATION...
THE MONTH OF SEPTEMBER WAS THE DRIEST EVER IN TUPELO...WITH ONLY 0.05 INCHES OF RAINFALL RECORDED. THIS BROKE THE PREVIOUS RECORD OF 0.06 INCHES SET IN 1998. THE PERIOD FROM AUGUST 24TH TO NOVEMBER 1ST...INCLUDED JUST FOUR DAYS WITH MEASURABLE RAINFALL.
MISCELLANEOUS CLIMATOLOGICAL INFORMATION FOR TUPELO:
| PARAMETER MEASURED | 1999 | NORMAL | DEPARTURE |
| AVERAGE HIGH | 75.6 | 72.2 | +3.4 |
| AVERAGE LOW | 52.5 | 51.2 | +1.3 |
| HIGHEST TEMPERATURE | 104 ON 8/19 | ||
| LOWEST TEMPERATURE | 11 ON 1/ 5 | ||
| DAYS LOW 32 OR LESS | 47 DAYS | ||
| DAYS HIGH 90 OR MORE | 77 DAYS | ||
| DAYS HIGH 100 OR MORE | 8 DAYS | ||
| LAST FREEZE (SPRING) | 3/27 | ||
| FIRST FREEZE (FALL) | 10/24 | ||
| GROWING SEASON | 210 DAYS | ||
| HEATING DEGREE DAYS | 2443 | 3054 | -611 |
| COOLING DEGREE DAYS | 2223 | 1901 | +322 |
| GREATEST 24 HR RAIN | 3.75 ON 1/22 |