171
12
1
1
1917
1
1
1917
5
Happy New Year, Gentlemen! Cloudy and very cold today
1
None
Medium
EOR
2
1
1917
2
1
1917
1
Clear and bright today, but more snow expected tomorrow
1
None
Medium
EOR
3
1
1917
4
1
1917
6
Bitter cold, more storms and snow. No Service flying
0
Heavy
Medium
EOR
5
1
1917
6
1
1917
6
More snow possible
1
Medium
Medium
EOR
7
1
1917
10
1
1917
6
Continued cold and snow grounds all flights
0
Heavy
Heavy
EOR
11
1
1917
13
1
1917
2
A brief break in the weather, but still very cold
1
None
Heavy
EOR
14
1
1917
16
1
1917
5
Snow finally tapering off, still cloudy
1
None
Heavy
EOR
17
1
1917
18
1
1917
6
Snow has returned
1
Medium
Heavy
EOR
19
1
1917
20
1
1917
4
Conditions slowly improving
1
None
Medium
EOR
21
1
1917
21
1
1917
3
Several breaks in the clouds
1
None
Medium
EOR
22
1
1917
23
1
1917
6
Cold and clouds return. Fog and snow halt artillery cooperation
0
Medium
Medium
EOR
24
1
1917
24
1
1917
5
Mostly cloudy and cold
1
None
Medium
EOR
25
1
1917
26
1
1917
1
Clear skies, but very cold
1
None
Light
EOR
27
1
1917
28
1
1917
2
Mostly sunny, but bitterly cold
1
None
Light
EOR
29
1
1917
30
1
1917
3
Not quite as cold. Clouds expected to increase
1
None
None
EOR
31
1
1917
31
1
1917
4
Changeable skies
1
None
None
EOR
1
2
1917
4
2
1917
1
Mostly sunny skies, cold
1
None
None
EOR
5
2
1917
6
2
1917
6
Increasing clouds, snow squalls
1
Medium
Medium
EOR
7
2
1917
7
2
1917
4
Decreasing clouds with some sunny breaks. Continued cold
1
None
Light
EOR
8
2
1917
10
2
1917
3
Partly cloudy and pleasant
2
None
None
EOR
11
2
1917
11
2
1917
4
Clouds returning
1
None
None
EOR
12
2
1917
13
2
1917
6
Clouds, fog, and heavy snow halt all operations
0
Heavy
Medium
EOR
14
2
1917
16
2
1917
4
Several thick clouds remain
1
None
Medium
EOR
17
2
1917
20
2
1917
6
Heavy clouds, rain, fog cancel operations
0
Medium
Light
EOR
21
2
1917
22
2
1917
6
Clouds with frequent light rain or snow showers
1
Light
Light
EOR
23
2
1917
24
2
1917
5
Mostly cloudy conditions, dry
1
None
None
EOR
25
2
1917
25
2
1917
4
Still mostly cloudy, some peaks of sun
1
None
None
EOR
26
2
1917
27
2
1917
1
Bright, sunny skies
2
None
None
EOR
28
2
1917
28
2
1917
4
Still mostly cloudy, some peaks of sun
1
None
None
EOR
1
3
1917
3
3
1917
3
Some clearing, but only for a day or two
2
None
None
EOR
4
3
1917
5
3
1917
6
Moderate to heavy snow cancels operations
0
Heavy
Medium
EOR
6
3
1917
6
3
1917
6
Heavy clouds, fog, and snow. Not a good day for flying
1
Light
Medium
EOR
7
3
1917
8
3
1917
6
Heavy clouds, gales, rain cancel operations
0
Heavy
Light
EOR
9
3
1917
10
3
1917
5
Cloudy, but warmer
2
None
Light
EOR
11
3
1917
12
3
1917
4
Towering cumulus, several sunny breaks
2
None
None
EOR
13
3
1917
14
3
1917
6
Heavy clouds, wind and rain again hamper artillery cooperation
1
Medium
None
EOR
15
3
1917
15
3
1917
1
Plenty of sun today
1
None
None
EOR
16
3
1917
19
3
1917
2
Mix of fair weather clouds. High winds possible
1
None
None
EOR
20
3
1917
21
3
1917
6
Heavy clouds, high winds and snow cancel operations
0
Heavy
Medium
EOR
22
3
1917
22
3
1917
6
Heavy clouds and fog with scattered snow showers
1
Light
Medium
EOR
23
3
1917
26
3
1917
5
Mostly cloudy, some peaks of sun
1
None
Light
EOR
27
3
1917
28
3
1917
6
Heavy clouds and rain cancel operations
0
Heavy
None
EOR
29
3
1917
30
3
1917
6
Heavy clouds, wind, and rain continue to hamper artillery cooperation
1
Light
None
EOR
31
3
1917
31
3
1917
2
Finally, a return to fair weather
2
None
None
EOR
1
4
1917
2
4
1917
1
Clear and sunny, but unseasonably cold
2
None
None
EOR
3
4
1917
4
4
1917
6
Heavy clouds, rain, snow, and gale force winds again cancel all operations
0
Heavy
Light
EOR
5
4
1917
5
4
1917
6
A few lingering light rain showers
1
Light
None
EOR
6
4
1917
8
4
1917
5
Still mostly cloudy and overcast
2
None
None
EOR
9
4
1917
10
4
1917
4
Some breaks in the clouds
1
None
None
EOR
11
4
1917
11
4
1917
5
Cloudy and windy during the day, with more rain after sunset
2
None
None
EOR
12
4
1917
12
4
1917
6
Heavy clouds, rain, and wind cancel all operations
0
Heavy
None
EOR
13
4
1917
13
4
1917
5
No rain today, but still cloudy
2
None
None
EOR
14
4
1917
15
4
1917
6
Heavy clouds, rain and high winds. No flying
0
Heavy
None
EOR
16
4
1917
17
4
1917
3
A mix of clouds and sun. Warmer
2
None
None
EOR
18
4
1917
19
4
1917
6
Thunderstorms, wind, rain cancel operations
0
Heavy
None
EOR
20
4
1917
23
4
1917
3
A mix of clouds and sun
2
None
None
EOR
24
4
1917
24
4
1917
6
Showers developing
2
Light
None
EOR
25
4
1917
26
4
1917
6
More rain, perhaps heavier than yesterday
1
Medium
None
EOR
27
4
1917
27
4
1917
6
Heavy thunderstorms and torrential rain ground all air activity
0
Heavy
None
EOR
28
4
1917
28
4
1917
4
Variably cloudy, but further clearing is likely
2
Light
None
EOR
29
4
1917
1
5
1917
2
Some fluffy cumulus and cirrus clouds
1
None
None
EOR
2
5
1917
6
5
1917
1
Clear blue skies for most of this week. Warm
1
None
None
EOR
7
5
1917
7
5
1917
4
Clouds moving in
1
None
None
EOR
8
5
1917
9
5
1917
6
Moderate rain with heavy wind gusts. No flying can be done
0
Medium
None
EOR
10
5
1917
12
5
1917
1
Clear skies returning. Warm weather continues
2
None
None
EOR
13
5
1917
14
5
1917
4
Conditions likely to deteriorate over the next few days
1
None
None
EOR
15
5
1917
15
5
1917
5
Clouds moving in, heavy storms likely tomorrow
1
None
None
EOR
16
5
1917
17
5
1917
6
Strong thunderstorms. No operations
0
Heavy
None
EOR
18
5
1917
20
5
1917
5
Mostly cloudy
2
None
None
EOR
21
5
1917
23
5
1917
2
Hot, with a mix of clouds and haze
2
None
None
EOR
24
5
1917
24
5
1917
4
Clouds building up again
2
None
None
EOR
25
5
1917
26
5
1917
6
Scattered thunderstorms and wind
0
Medium
None
EOR
27
5
1917
28
5
1917
6
Off and on light rain showers
2
Light
None
EOR
29
5
1917
30
5
1917
4
Partly to mostly cloudy conditions
2
None
None
EOR
31
5
1917
1
6
1917
5
Cloudy and hazy skies are likely
2
None
None
EOR
2
6
1917
3
6
1917
6
Light rain and mist
2
Light
None
EOR
4
6
1917
4
6
1917
6
Rain continues, possibly heavy at times
1
Medium
None
EOR
5
6
1917
5
6
1917
6
Heavy rain and thunderstorms. No operations
0
Heavy
None
EOR
6
6
1917
8
6
1917
1
Mostly sunny and warm
3
None
None
EOR
9
6
1917
12
6
1917
2
Some high, fair weather clouds. Still nice
2
None
None
EOR
13
6
1917
15
6
1917
4
Changeable conditions
2
None
None
EOR
16
6
1917
18
6
1917
5
Becoming mostly cloudy
2
None
None
EOR
19
6
1917
20
6
1917
6
Heavy thunderstorms cancel all flights
0
Heavy
None
EOR
21
6
1917
22
6
1917
6
Still rainy, barely tolerable for flying
1
Medium
None
EOR
23
6
1917
26
6
1917
3
Mostly fair with some large towering clouds
1
None
None
EOR
27
6
1917
27
6
1917
1
Sunny and clear
1
None
None
EOR
28
6
1917
1
7
1917
6
A thoroughly wet couple of days, with moderate but persistent rain
1
Medium
None
EOR
2
7
1917
5
7
1917
4
Partly to mostly cloudy, with towering cumulus clouds
1
None
None
EOR
6
7
1917
7
7
1917
2
Sunny, some scattered clouds
1
None
None
EOR
8
7
1917
9
7
1917
6
Thunderstorms, wind, rain cancel operations
0
Heavy
None
EOR
10
7
1917
13
7
1917
2
Sunny with scattered clouds
2
None
None
EOR
14
7
1917
14
7
1917
3
Increasing clouds, still pleasant
1
None
None
EOR
15
7
1917
17
7
1917
6
Isolated, but potentially severe, thunderstorms possible for the next several few days
1
Medium
None
EOR
18
7
1917
18
7
1917
6
Thunderstorms, wind, and rain limit operations
0
Heavy
None
EOR
19
7
1917
19
7
1917
5
Rain appears to have ended. Still overcast
2
None
None
EOR
20
7
1917
23
7
1917
1
Clear skies and very hot
2
None
None
EOR
24
7
1917
24
7
1917
3
Extremely hot, hazy
2
None
None
EOR
25
7
1917
26
7
1917
6
Frequent rain showers more likely than not
1
Medium
None
EOR
27
7
1917
28
7
1917
3
Mostly sunny, with some towering cumulus. Windy and warm
2
None
None
EOR
29
7
1917
30
7
1917
5
Overcast conditions
2
None
None
EOR
31
7
1917
31
7
1917
6
Clouds and rain have returned
1
Medium
None
EOR
1
8
1917
4
8
1917
6
Constant rain squalls and very strong winds. No flying
0
Heavy
None
EOR
5
8
1917
5
8
1917
4
Not quite as dreary today. Still, more clouds than sun
2
None
None
EOR
6
8
1917
7
8
1917
6
More rain, with no signs of relief
2
Medium
None
EOR
8
8
1917
9
8
1917
6
No operations due to continued bad weather
0
Heavy
None
EOR
10
8
1917
11
8
1917
1
Finally! Clear skies have returned
2
None
None
EOR
12
8
1917
12
8
1917
2
Fair skies with light clouds
2
None
None
EOR
13
8
1917
16
8
1917
6
Heavy rain again cancels all operations
0
Heavy
None
EOR
17
8
1917
18
8
1917
2
Fair skies, at least for a day or two
2
None
None
EOR
19
8
1917
20
8
1917
6
More rain, with scattered afternoon thundershowers
1
Medium
None
EOR
21
8
1917
22
8
1917
5
Still cloudy, but the rain appears to have ended for now
2
None
None
EOR
23
8
1917
24
8
1917
4
Hazy, humid, and warm, with partly to mostly cloudy skies
2
None
None
EOR
25
8
1917
28
8
1917
3
Hazy, with a mix of sun and clouds
2
None
None
EOR
29
8
1917
29
8
1917
6
Heavy rain and storms halt air operations
0
Heavy
None
EOR
30
8
1917
1
9
1917
5
More cloudy skies
3
None
None
EOR
2
9
1917
3
9
1917
4
A few breaks in an otherwise dreary sky
2
None
None
EOR
4
9
1917
4
9
1917
5
More clouds
2
None
None
EOR
5
9
1917
6
9
1917
6
Threat of heavy rain showers
2
Heavy
None
EOR
7
9
1917
8
9
1917
6
Heavy rain grounds all flights
0
Heavy
None
EOR
9
9
1917
9
9
1917
6
Rain beginning to ease a bit
1
Light
Light
EOR
10
9
1917
11
9
1917
2
Mostly sunny, some light cumulus clouds
2
None
None
EOR
12
9
1917
13
9
1917
6
Intermittent light rain, low clouds
1
Light
None
EOR
14
9
1917
14
9
1917
4
Perhaps a brief break in the rainy weather
2
None
None
EOR
15
9
1917
16
9
1917
5
Clouds have returned
1
None
None
EOR
17
9
1917
18
9
1917
6
Storms, high wind, rain
0
Heavy
None
EOR
19
9
1917
22
9
1917
1
Abundant blue skies for the next few days
1
None
None
EOR
23
9
1917
24
9
1917
3
Becoming partly cloudy
1
None
None
EOR
25
9
1917
25
9
1917
4
Variably cloudy, more clouds than sun
2
None
None
EOR
26
9
1917
27
9
1917
5
Thick clouds, some sunny breaks
1
None
None
EOR
28
9
1917
2
10
1917
2
Mostly sunny, with high scattered clouds
1
None
None
EOR
3
10
1917
5
10
1917
5
Mostly cloudy conditions
1
None
None
EOR
6
10
1917
7
10
1917
6
Torrential rain. All operations canceled
0
Heavy
None
EOR
8
10
1917
9
10
1917
6
Thick low clouds and rain hamper artillery cooperation
1
Medium
Medium
EOR
10
10
1917
11
10
1917
3
A mix of clouds and sun. High winds possible
1
None
None
EOR
12
10
1917
13
10
1917
6
Low clouds and spotty heavy rain showers will impede artillery cooperation
1
Medium
None
EOR
14
10
1917
18
10
1917
5
Turning cooler, mostly cloudy
2
None
None
EOR
19
10
1917
19
10
1917
6
Thick low clouds and heavy mist prevents any work
0
Heavy
None
EOR
20
10
1917
21
10
1917
3
Scattered, towering cumulus clouds may hamper artillery cooperation
1
None
None
EOR
22
10
1917
23
10
1917
1
Predominately sunny, with lots of blue sky
2
None
None
EOR
24
10
1917
24
10
1917
2
Nice, with a few light clouds. Warmer
1
None
None
EOR
25
10
1917
26
10
1917
6
Rain and violent gales prevent any Service flying
0
Heavy
None
EOR
27
10
1917
28
10
1917
3
Scattered clouds and strong Westerly winds
2
None
None
EOR
29
10
1917
31
10
1917
2
Mostly sunny, with a few scattered clouds
1
None
None
EOR
1
11
1917
2
11
1917
6
Rain and heavy mist over the battlefield
0
Medium
None
EOR
3
11
1917
5
11
1917
1
Sunny skies, but much colder
2
None
None
EOR
6
11
1917
6
11
1917
5
Cloudy skies again
2
None
None
EOR
7
11
1917
10
11
1917
6
Cold and gray, heavy rain squalls possible
1
Medium
None
EOR
11
11
1917
12
11
1917
4
Cold, variably cloudy skies
1
None
None
EOR
13
11
1917
13
11
1917
6
Heavy clouds, mist, and thick fog halt all operations
0
Medium
None
EOR
14
11
1917
16
11
1917
5
Cloudy, some breaks in spots
1
None
None
EOR
17
11
1917
20
11
1917
4
Variably cloudy for several days
1
None
None
EOR
21
11
1917
22
11
1917
6
Cold, with gale force winds. Air operations canceled
0
Heavy
None
EOR
23
11
1917
24
11
1917
2
Fair skies. Good flying weather, but cold
2
None
None
EOR
25
11
1917
28
11
1917
4
Heavy cumulus, some sunny breaks
2
None
None
EOR
29
11
1917
1
12
1917
3
Improving conditions
1
None
None
EOR
2
12
1917
2
12
1917
1
Clear skies, but even colder. Brisk winds
1
None
None
EOR
3
12
1917
4
12
1917
6
Snow flurries, thick ground mist in spots
1
Light
Light
EOR
5
12
1917
5
12
1917
2
Cold with a few light clouds
2
None
Light
EOR
6
12
1917
6
12
1917
5
Mostly cloudy and warmer
2
None
None
EOR
7
12
1917
10
12
1917
6
Thick mist, rain and heavy fog prevent operations
0
Light
None
EOR
11
12
1917
12
12
1917
5
Thick clouds and mist in places
1
Light
None
EOR
13
12
1917
14
12
1917
6
Thick ground mist, low clouds restrict operations
1
Medium
None
EOR
15
12
1917
16
12
1917
4
Variably cloudy conditions, more clouds than sun
1
None
None
EOR
17
12
1917
18
12
1917
1
A few days with clear skies, but chilly
1
None
None
EOR
19
12
1917
19
12
1917
2
Some light passing clouds
1
None
None
EOR
20
12
1917
21
12
1917
6
Impenetrable fog, low clouds prevent any operations
0
Heavy
None
EOR
22
12
1917
23
12
1917
5
Thick low clouds
1
None
None
EOR
24
12
1917
24
12
1917
6
Light snow during the day, becoming heavy overnight
1
Light
Light
EOR
25
12
1917
25
12
1917
6
Merry Christmas, lads! Heavy snow last night has brought us a white Christmas this year
1
Light
Medium
EOR
26
12
1917
27
12
1917
3
Variably cloudy skies
1
None
Medium
EOR
28
12
1917
31
12
1917
6
Sleet and heavy snow likely over the next several days
0
Heavy
Heavy
EOR
