November 2011
Report and Summary
Tyler, Texas
November 2011
by Robert K. Peters, Ph.D.
National Weather Service Cooperating Observer
The month of November 2011 saw temperatures slightly above normal, and rainfall slightly below normal.
A series of migratory storms during the latter two-thirds of the month brought welcomed rainfall to the area, which eased but did not eliminate the drought. Compared with November 2010, the month was 2.0 deg. Warmer, and 1.76 inches wetter.
Year-to-date rainfall through month's end was 11.24 inches less in 2011 than in 2010.
The thirty-day outlook had called for above normal temperatures and below normal precipitation.
The month began warm until a cold front arrived on the 2nd, which lowered temperatures through the 5th. Temperatures went back above normal between the 6th and 9th, ahead of a storm system which brought rain and cooler temperatures.
The cool and fair weather lasted through the 12th, when readings again warmed ahead of a storm system which crossed on the 16th with more rain and a brief cool-down through the 18th.
Storm systems crossed on the 21st and 26th, with rainfall of between one-half inch and one inch accompanying each. Temperatures warmed ahead of both storms, and cooled slightly following the first system.
Arctic air arrived on the 27th, bringing temperatures several degrees below normal through the end of the month. The first freeze occurred just before midnight on the 27th, ending the growing season at 264 days it had begun on March 7.
- KEY TO SYMBOLS:
- A = HAIL
- B = BLOWING
- D = DUST
- F = FOG
- H = HAZE
- IP = SLEET
- K = SMOKE
- L = DRIZZLE
- R = RAIN
- S = SNOW
- T = THUNDERSTORM
- Z = GREENWICH MEAN TIME
- ZL = FREEZING DRIZZLE
- ZR = FREEZING RAIN
- - = LIGHT
- + = HEAVY
R FOLLOWING A TEMPERATURE OR PRECIPITATION VALUE = RECORD
The reporting period for temperatures, precipitation, and phenomenon on each day is for the twenty-four hours ending at midnight hours GMT--6 p.m. CST and 7 p.m. CDT. All times are given using the twenty-four hour clock, and are expressed in Greenwich Mean Time.
Effective June 6, 2011, the term "day" in the Records and Summary section refers to the clock day beginning at 12:00 midnight CST, and ending at 11:59 p.m. CST. Observations are from NWS Station 41/9207/4 in Tyler, Texas.
The term "normal" refers to averages from the standard climatic period 1981-2010.
.NOVEMBER 2011
DY MX MN OBS PCPN REMARKS- DY MX MN OBS PCPN REMARKS
- 01 77 48 69
- 02 78 54 72
- 03 73 42 51 DAYTIME MAXIMUM 59
- 04 66 35 56
- 05 68 44 64
- 06 78 60 73
- 07 74 65 73
- 08 74 65 65 0.50 T, F, +F, PCPN 2000-2200 Morning Low 68
- 09 65 44 53 0.02 PCPN 0000-0100 DAYTIME HIGH 60
- 10 64 38 53
- 11 67 34 57
- 12 73 47 69
- 13 81 63 74
- 14 81 69 75
- 15 75 66 66 0.78 T, F, PCPN 0900-1000, 2000-2400 MORNING LOW 69
- 16 71 60 60 0.12 F, +F, PCPN 20100-2200 MORNING LOW 61
- 17 60 39 48 MAX 1200-2400 58
- 18 65 36 61
- 19 75 57 73
- 20 80 71 74
- 21 74 56 72 0.41 F, PCPN 1200-1800
- DAYTIME HIGH 72
- 22 73 48 52 1.35 F, T, PCPN 0700-1000
- 23 66 43 55 F
- 24 55 45 50 F +F, MAX. 1200-2400 51
- 25 70 42 66 F, +F,
- 26 66 50 50 0.69 F, PCPN 1200-1800 Morning Low and Daytime High both 62
- 27 50 39 43 DAYTIME HIGH 49
- 28 52 28 43
- 29 61 30 51
- 30 60 33 49
NOVEMBER 2011, RECORDS AND SUMMARY:
- 6TH 0800Z, RETURNED TO STANDARD TIME;
- 20TH, RECORD HIGH MINIMUM 71, PREVIOUS RECORD 69 IN 1942;
- 27TH FIRST FREEZE JUST BEFORE MIDNIGHT; GROWING SEASON ENDS AT 264
- DAYS;
- HIGHEST TEMPERATURE 81 ON THE 13TH AND 14TH,
- LOWEST TEMPERATURE 28 ON THE 28TH,
- AVERAGE MAXIMUM 69.0 F.,
- AVERAGE MINIMUM 48.4 F.,
- AVERAGE TEMPERATURE 58.7 F.,
- 1.9 DEG. WARMER THAN NORMAL.
- 256 HEATING DEGREE DAYS,
- 94.5 PERCENT OF NORMAL HEATING DEGREE DAYS.
- 51 COOLING DEGREE DAYS,
- 188.9 PERCENT OF NORMAL COOLING DEGREE-DAYS;
- TOTAL PRECIPITATION 3.87 IN.,
- 0.51 IN. LESS THAN MONTHLY NORMAL.
- 88.4 PERCENT OF NORMAL MONTHLY PRECIPITATION.
- YEAR-TO-DATE PRECIPITATION 23.49 IN.,
- 18.66 IN. LESS THAN NORMAL YEAR-TO-DATE PRECIPITATION,
- 55.7 PERCENT OF NORMAL YEAR-TO-DATE PRECIPITATION;
- 3 DAYS ON WHICH THUNDERSTORMS OCCURRED;
- 6 DAYS ON WHICH MEASURABLE PRECIPITATION OCCURRED;
- 4 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED TO BETWEEN « AND 6 MILES BY FOG, SMOKE, OR HAZE;
- 9 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED TO 1/4 MILE OR LESS BY FOG;
- 0 DAYS ON WHICH THE VISIBILITY WAS RESTRICTED BY DUST OR BLOWING DUST;
- 0 DAYS ON WHICH FROZEN PRECIPITATION WAS OBSERVED;
- 0 IN. TOTAL SNOWFALL.
- 0 DAYS ON WHICH THE MAXIMUM TEMPERATURE REACHED OR EXCEEDED 90 DEG.;
- 0 DAYS ON WHICH THE MAXIMUM TEMPERATURE REACHED OR EXCEEDED 100 DEG.;
- 0 DAYS ON WHICH THE TEMPERATURE FAILED TO RISE ABOVE 32 DEG.
- 3 DAYS ON WHICH THE MINIMUM TEMPERATURE REACHED OR FELL BELOW 32
- DEG.
- 324 SEASON-TO-DATE HEATING DEGREE DAYS,
- PERCENTAGE OF NORMAL SEASON-TO-DATE HEATING DEGREE DAYS: 91.5;
- 3249 YEAR-TO-DATE COOLING DEGREE DAYS.
- PERCENTAGE OF NORMAL YEAR-TO-DATE COOLING DEGREE DAYS: 137.4;
- PRECIPITATION DURING THE PREVIOUS TWELVE MONTHS 24.68 IN.,
- TWELVE-MONTH PRECIPITATION PERCENTAGE 52.9.