14 MISC. PUBLICATION 225, U. S. DEPT. OF AGRICULTURE 
TABLE 24.—Relative humidity percent, pressure 29.0 inches, Fahrenheit temperatures 
Depression of wet bulb (dry-buib temperature minus wet-bulb temperature) 
Dry-bulb fale eae 
| 
8 7a 9 | 10} 11 AS | 14 15h 16: Pa 1S e198) 20-20 4 22 Nee) 24 
(Vinee ee oes ere) ape 46 | 38 | 31 | 23] i 9 z 
AD ee ps <8 Eee 48 | 41 | 34] 28] 21 | 14 7 0 
7 Haas Geo eel Se Seed 51 | 44 | 37 | 31 | 24] 18 | 12 5 
AG eee ee 2 Pe ee 53 | 46 | 40 | 34 | 28 | 22 | 16; 10 4 
AS ieee 8S ES ee ee 54 | 48 | 42 | 36} 31; 25 | 19 | 14 8 3 ; 
LS Seer ter = See 56 | 50 | 44 } 39 | 33 | 28 | 22 | 17 | 12 7 2 
5D Same oe ee eee 58 | 52 | 46 | 41 | 36} 30 | 25.) 20] 15 | 10 6 0 
5A Se Ae ee 59 | 54 |] 48 | 43 | 38 |] 33 | 28) 23 | 18 | 14) 9 5 0 
BOM as = ec ee oe 61 | 55 | 50 | 45 | 40} 35 | 31 | 26 | 21 | 17 125 8 4 
Li ete ee Se eae OB eet 62 | 57 | 52 | (47 | 421 38 | 332) 28 | 24 1 20} 15 | 11 7 3 
GOs es eee oe TOE ee ee Oe 3 458 | 53 | 149° 44.4 40 1535 Si | 27 22 118 1 14 to 6 2 
62-2 ea eae G460F 551 On 46-41 Sieltcs | 20g oon ete els as 9 6 2 
(G:F eteemi Se Be 66 | 61 | 56 | 52} 48 | 43] 3 Seo i SAU Ty UG) |e 9 5 2 
GS ote ee ee 66 | 62 |] 58 | 53 | 49 | 45 | 41 | 37 | 33 | 29 | 26 | 22) 18 | 15} 11 8 5 1 
GS ies te ee ee a 67 | 63 | 59 | 55] 51 | 47 ra, BO Sb al SL e2S a e24l octet 8 4 
PAA) sped merece eBatiest setae <n 68 | 64 | 60 , 56 | 52 | 48 | 44! 40] 37 | 33 | 30 | 26 |} 23 | 20) 17] 1 10 7 
(onde soe oe eee 69 | 65 | 61 | 57 | 53 | 49 | 46 | 42 | 39 | 35 | 32) 28 | 25 | 22] 19 | 16) 13 10 
(4s So ee eee 70 | 66 | 62 | 58 | 54 | 51 | 47 | 44 | 40 | 37 | 34 | 30 | 27 | 24 | 21 | 18 | 15 12 
1G ee a = ee 70 | 67 | 63 | 59 | 55 | 52 | 48 | 45 | 42 | 38 | 35 | 82 | 29 | 26 | 23. | 20 | 17 14 
18S Ba en ee 71 | 67 | 64 | 60] 57 | 538 | 50 | 46 | 43 | 40 | 37 | 34] 31 | 28 | 25 | 22} 19 16 
1 () esha rere ae ea ee 72 | 68 | 64] 61 | 57 | 54] 51 | 47 | 44 | 41.) 38 | 35 | 32 |. 29 | 27 | 24 | 21 18 
bo 7a are genie” Sale eee: BAER «TF 72 | 69 | 65 | 621; 58 | 55 | 52 | 49 | 46 43 | 49 | 37 | 34] 31 | 28 | 25 | 23 20 
ba ed ba sR ath enna ae WISE ening 73 | 70 |} 66 | 63 | 59:1 56 | 53>) -50)| 47 || 44] 41 | 38 + 35 1 32 | 30 | 27 | 25 22 
SGmie aS ee ee ee 74 | 70 | 67 | 63 | 60 | 57 | 54] 51 | 48 | 45-}] 42 | 39 | 37 | 34} 31 | 29 | 26 24 
ra Re ae pe gece pee SEE 74 | 71 | 67 | 64] 61 Be 55 aa 49 46 | 43 | 41 | 38 | 35 | 33 | 30 | 28 25 
OQ BL iE is Se ES eee 75 | 71 |! 68 | 65 | 62 | 59! 56 | 53! 50 | 47 | 44 | 42! 39 | 37 ! 34 | 32 | 29 27 
G2 gat ps 75 | 72 | 69 | 65 | 62 | 59 | 57 54 | 5i | 48 | 45 | 43 1 40 | 38 | 35 | 33 | 30 28 
GAS see She 75 | 72 | 69 | 66 | 63 | 60} 57 | 54 |= 49 | 46 | 44] 41 | 39 | 36 | 34 | 32 29 
962532 Aes son Sd Bs ees 76 | 73 | 70 | 6&7 | 64] 61 58 | 55 | 53} 50 | 47 | 45 | 42 | 40 | 37 | 35 | 33 | 3 
GR ee a a ae ee 76 | 73 | 70 | 67 | 64] 61 | 59! 56 | 53 | 51 | 48 | 46 | 43 | 41 | 39 | 36 | 34 32 
100 se ae 77 | 741 71 | 68 | 65 | 62 59 | 57°| 54 | 52 | 49 | 47 }.44 | 42 | 40 | 37 | 35 33 
fQ Qe 22S ee 77 | 74 | 71 | 68 | 65 | 63 | 60 | 57 | 55) 52] 50 | 47 | 45 | 43} 41 | 38 | 36 34 
104 ee Sa Ss eee | 771 741 72 | 69 | 66 | 63] 61 | 58 | 56 | 53 | 51 | 48 1 46 | 44 | 41 | 39 | 37 35 
HOGEs = Sb 2 ae a ee | 78 | 75 | 72 | 69 | 66 -| 61 | 59 | 56} 54) 51 | 49 | 47 | 45 | 42 | 49 | 38 36 
WOSt. 322 = Js 2 ee | 78 | 75 ey is 67 al 62 | 59 | 57 | 54] 52 | 50 ae 45 | 43 | 41 | 39 37 
i 
Depression of wet bulb (dry-bulb temperature minus wet-bu!b temperature) 
Dry-bulb tempera- | 
ture °F. | | | | 
25 | 26 27 | 28 | 29 | 30] 31 | 32 | 33.| 34 | 35 | 36 | 37 | 38 | 39 fe 40 | 41 | 42 | 
ei weg ete" TY, ak & 
(| UE Sp wa. ieee Aaleeits| 
6 fe a a ap ce TE A 7 4 1 
VC Brea eee ee eee g 7 4 1 
iu Ce ee oh 12Y] POU MGA A | 28 
(oie: GEE Ae alee 14] 111 9 | Gal) Aelia: 
| eh enn ee 16) 13} 11 8 6 4 1 
6S aa aes See See ee 18 | 15 | 13 | 10 8 6 4 1 j 
842) FOSS DES 4 in eM ZO Ait 1521 12 AO 8 6 4 2 : 
86... 4 Se ees PHN ed REN eT feu bal Ve nl fled 7A a 0) 8 6 4 2 
5 es Oe Beak Oe et Oe ee 23) 2 AS 16 ta te 8 6 4 2 
90: => = 5 ee ee 24 | 22) 20 | 18} 16 | 14) 12} 10 8 6 4 2 0 
5! a Sa ge pera eats STRESS) SY Pe ee as ST Pa er eye ya Tat 9 8 6 + 2 0 
O4. ek ee Gel ee PA fa Var AS: [7A 107 Wo) Vn AED VB ys GS | Pa Fea 9 8 6 4 2 1 
OG. Lane. Ls eee ee 29 N20 24 WZ e2O OL hg, felon ketal 9 rf 6 4 3 1 , 
O82 Es 2 aed 30 | 28 | 26 | 24} 22! 20! 18] 16! 14] 13! 11 9 uf 6 4 3 1 
TK), teres eres Ure on eee Se. 31 | 29 | 2} 25 23 | 21 | 19 | 18} 16) 14] 12] 11 9 7 6 4 3 1 
102. S38 Otek. ts eee B21) 60) | 28 4 20,1 24 | 22a 20 On oti babel | bet ik g 7 6 4 3 
104.2522 See See BABE P48) | 7 35 | 2AM 22 ZO US ail? belook 1412 h2 eth 9 7 6 5 
106... =232t se. eee ees 34.1932 | 30] 28°] 27-| 25.) 23 1 20.1, 20.1 18.) 16} £5} 13.) 12 |-10 9 7 6 
10822308. ae Boal oo fol | 2912811026) 241 22s a2 AQIS NetGs) T50) oe el ate 9 re 
TiO: = 222-4 SE ee eee 36 j, 34 | 32.1 30)] 29)| 27 | 25 |. 241221. 20.) 19) 87 1-16.) 14) 1Saheebit0 9 
112... eA Se STS [SS SET SOs 4 261 25. beSales teeO dort baal) hot ela oadeye ln astel 10 
114 ee eee 38 | 36 | 34] 32 | 31 | 29 | 27 | 26 | 24 | 22} 21] 19 | 18 |] 17] 15 | 14) 13 il 
Li6... 42.92 Pe eee Sore? [35 7 oof Sb SO)t 28 lediale2o fecouteca eon) TOnhst Saint Gal meen aee: 12 
41923 4 SS ee 39437 | 36] 344 32 1731 | 2951227126 |, 2401) 23 2 | 20s) 19 el Got 13 
