APPENDIX 3
Local
Standard Times for MINTMP, MAXTMP and AVETMP
|
T |
he
table below summarizes Local Standard Times for Minneapolis – St. Paul,
Minnesota, corresponding to MINTMP, MAXTMP and AVETMP, as well as times for
sunrise and sunset, for each of the twelve months of the year. Times are expressed
as Military Time.
Often, from within the source climate data
sheet*, MAXTMP and/or MINTMP temperature
repetitions are observed over a time interval of several hours; in such cases,
the earliest hour from among such multiple temperatures is selected for
entry into the table.
Local standard times for MAXTMP and MINTMP
are recorded in the table to the nearest hour. Within the table, only evening
AVETMPs are listed; morning AVETMPs are not included. Evening
AVETMPs are approximated to the nearest half-hour; nevertheless, like MAXTMP
and MINTMP, these too imply an error tolerance of plus or minus one hour.
|
Minnesota Local
Standard Times |
|||||
|
Month |
MAXTMP |
MINTMP |
Sunrise |
AVETMP |
Sunset |
|
|
|
|
|
|
|
|
JAN |
1500 |
0400 |
0740 |
1900 |
1711 |
|
FEB |
1400 |
0700 |
0658 |
2130 |
1755 |
|
MAR |
1500 |
0600 |
0607 |
2130 |
1830 |
|
APR |
1400 |
0600 |
0512 |
2130 |
1909 |
|
MAY |
1400 |
0400 |
0435 |
2130 |
1944 |
|
JUN |
1400 |
0500 |
0428 |
2030 |
2003 |
|
JUL |
1500 |
0500 |
0451 |
2130 |
1948 |
|
AUG |
1500 |
0500 |
0526 |
2130 |
1904 |
|
SEP |
1400 |
0500 |
0603 |
2130 |
1807 |
|
OCT |
1400 |
0500 |
0642 |
2000 |
1712 |
|
NOV |
1300 |
0700 |
0723 |
2000 |
1637 |
|
DEC |
1400 |
0500 |
0749 |
2000 |
1637 |
With these error tolerances in mind, the table shows that the time interval between sunrise and MINTMP appears to vary from negligible to none. On the other hand, some trend seems to manifest itself between sunset and evening AVETMP with the former preceding the latter.
The table, even though specific to Minneapolis-St. Paul, gives the reader a general idea of time relationships among the three locally defined temperature conditions and sunrise and sunset. It is beyond the scope of this book to provide counterpart tables for the vast number of cities within the United States. Fortunately, such information as contained in the table is conveniently available from local libraries of most U.S. cities and towns. ■
