Climatological Report (Monthly) Issued by NWS Portland, ME
000
CXUS51 KGYX 012144
CLMCON
PWMCLMCON 000
TTAA00 GYX 011743
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
143 PM EDT WED NOV 01 2023
...................................
...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1868 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 92 10/16/1879
LOW 10 10/21/1972
10/24/1969
HIGHEST 86 10/03 79 7 78 10/07
LOWEST 28 10/31 21 7 26 10/29
10/30
AVG. MAXIMUM 65.6 60.9 4.7 63.3
AVG. MINIMUM 43.1 37.8 5.3 37.1
MEAN 54.4 49.3 5.1 50.2
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 2 11.2 -9.2 11
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 14.57 2005
MINIMUM 0.05 1924
TOTALS 2.67 4.43 -1.76 2.74
DAILY AVG. 0.09 0.14 -0.05 0.09
DAYS >= .01 10 10.6 -0.6 10
DAYS >= .10 5 6.8 -1.8 7
DAYS >= .50 2 2.8 -0.8 2
DAYS >= 1.00 1 1.3 -0.3 0
GREATEST
24 HR. TOTAL 1.17 10/21 TO 10/22
SNOWFALL (INCHES)
RECORDS
TOTAL 23.0 2011
TOTALS 0.0 0.8 -0.8 0.0
SINCE 7/1 0.0 0.8 -0.8 0.0
SNOWDEPTH AVG. 0
DAYS >= TRACE 0 0.2 -0.2 0
DAYS >= 1.0 0 0.1 -0.1 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL 0
DEGREE DAYS
HEATING TOTAL 328 488 -160 451
SINCE 7/1 459 679 -220 606
COOLING TOTAL 4 3 1 0
SINCE 1/1 574 528 46 646
................................................................
WIND (MPH)
AVERAGE WIND SPEED 3.8
HIGHEST WIND SPEED/DIRECTION 21/320 DATE 10/15
HIGHEST GUST SPEED/DIRECTION 32/260 DATE 10/28
SKY COVER
AVERAGE SKY COVER 0.57
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 HEAVY RAIN 1
RAIN 5 LIGHT RAIN 14
FREEZING RAIN 0 LT FREEZING RAIN 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 FOG 21
FOG W/VIS <= 1/4 MILE 7 HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
A BROAD RIDGE OF HIGH PRESSURE ALONG THE EAST COAST DOMINATED THE
WEATHER THROUGH THE FIRST WEEK OF OCTOBER. THIS BROUGHT A PERIOD OF
DRY AND VERY WARM CONDITIONS TO THE CONCORD AREA. THE RIDGE BROKE
DOWN BY THE END OF THE FIRST WEEK WITH A FRONTAL SYSTEM CROSSING THE
AREA BRINGING RAIN AND MUCH COOLER TEMPERATURES. AN UPPER LOW
LINGERED NEAR NEW ENGLAND THROUGH MUCH OF THE SECOND WEEK OF THE
MONTH KEEPING TEMPERATURES NEAR NORMAL WITH SHOWERY WEATHER.
ADDITIONAL UPPER LOWS AND TROUGHS CROSSED THE NORTHEAST THROUGH THE
THIRD WEEK OF THE MONTH LIMITING ANY SIGNIFICANT WARM UPS, ALTHOUGH
CONDITIONS WERE MOSTLY DRY WITH ONLY A COUPLE LIGHT RAIN EVENTS. A
MORE SIGNIFICANT SYSTEM IMPACTED THE CONCORD AREA THE WEEKEND OF THE
21ST INTO THE 22ND AS LOW PRESSURE TRACKED ACROSS SOUTHERN NEW
ENGLAND INTO THE GULF OF MAINE BRINGING A SOAKING RAIN. COOLER AIR
ARRIVED BEHIND THIS SYSTEM LEADING TO THE CONCORD AREA DROPPING
BELOW THE FREEZING MARK FOR THE FIRST TIME THIS FALL WHEN THE LOW
TEMPERATURE REACHED 30 DEGREES ON THE 24TH. A WARM UP ENSUED THE
FINAL WEEK OF THE MONTH FOLLOWED BY ANOTHER LOW PRESSURE SYSTEM
BRINGING RAIN AND A SHOT OF MUCH COLDER AIR TO CLOSE OUT THE MONTH.
THE AVERAGE TEMPERATURE FOR THE MONTH WAS 54.4 DEGREES, WHICH WAS
5.1 DEGREES ABOVE NORMAL AND THE 7TH WARMEST OCTOBER ON RECORD. THE
WARMEST OCTOBER ON RECORD WAS IN 1879 WHEN THE AVERAGE TEMPERATURE
WAS 57.6 DEGREES. THE COOLEST WAS 42.2 DEGREES IN 1925. THE
FOLLOWING TABLE LISTS THE WARMEST OCTOBERS ON RECORD AT CONCORD.
WARMEST AVERAGE TEMPERATURE IN OCTOBER (SINCE 1868)...
RANK TEMP YEAR
1 57.6 1879
2 56.9 2017
3 55.3 1878
4 55.1 1947
5 55.0 1920
6 54.8 2021
7 54.4 2023 <===
8 54.1 2007
9 53.9 1938
10 53.8 1963
A TOTAL OF 2.67 INCHES OF PRECIPITATION FELL, WHICH WAS 1.76 INCHES
BELOW NORMAL. THE DRIEST OCTOBER ON RECORD WAS IN 1924 WHEN ONLY
0.05 INCHES OF PRECIPITATION FELL. THE WETTEST WAS 14.57 INCHES IN
2005.
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN OCTOBER 2023...
DATE RECORD PREVIOUS
OCT 4 84 - WARMEST HIGH TEMPERATURE 84 IN 1931 (TIED)
OCT 28 80 - WARMEST HIGH TEMPERATURE 78 IN 1947
$$
DS