Current Date: 4/17/2026 10:09 PM
Daily Parameter Report
4/17/2026
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
01 OZONE PPM ALPINE .042 .043 C C .034 .038 .041 .045 .049 .052 .054 .055 .057 .061 .068 .068 .060 .056 .053 .047 .045 .041 .050 .068 14
CHULA VISTA .028 .033 C C .031 .020 .028 .040 .044 .047 .052 .053 .053 .054 .054 .052 .053 .052 .049 .048 .045 .041 .043 .054 13
DOWNTOWN SE .029 .033 C C .033 .024 .024 .036 .044 .047 .049 .051 .052 .054 .050 .054 .052 .050 .048 .049 .045 .041 .043 .054 13
EL CAJON LES .033 .033 C C C .025 .027 .030 .043 .047 .053 .059 .060 .064 .065 .056 .052 .050 .045 .042 .038 .040 .045 .065 14
KEARNY MESA .028 .030 C C .028 .020 .028 .041 .047 .049 .054 .057 .060 .060 .055 .052 .052 .051 .047 .042 .040 .028 .043 .060 12
OTAY MESA DVN .046 .045 C C .037 .043 .045 .049 .047 .047 .051 .057 .058 .058 .059 .056 .055 .054 .049 .046 .043 .038 .049 .059 14
PENDLETON .032 .030 C C .026 .022 .023 .027 .041 .048 .050 .054 .055 .053 .056 .055 .052 .050 .049 .048 .048 .047 .043 .056 14
03 NO2 PPB ALPINE 3.2 2.7 C C 3.3 3.2 3.1 2.7 2.0 2.4 2.4 2.1 1.9 2.3 3.0 3.0 3.2 3.6 5.1 7.0 5.6 5.3 3.3 7.0 19
CARMEL MT RCH 2.2 2.7 C C 4.7 9.7 6.0 4.5 8.7 7.6 7.1 9.2 9.3 10.3 8.3 8.2 10.0 9.1 10.7 9.2 9.7 10.2 7.8 10.7 18
CHULA VISTA 11.3 8.5 C C 9.1 16.3 8.9 6.1 5.4 5.7 2.5 2.3 2.2 2.2 2.4 2.6 2.2 1.9 3.5 3.4 3.4 3.7 5.1 16.3 05
DOWNTOWN SE 8.3 7.1 C C 6.9 13.3 13.9 6.9 5.4 5.4 5.8 4.6 3.0 3.1 3.2 2.9 3.9 2.8 4.7 6.6 8.2 7.8 6.1 13.9 06
EL CAJON LES 3.4 2.8 C C C 3.5 3.0 3.8 1.3 1.4 2.5 1.6 2.0 2.4 2.4 2.3 2.5 2.9 4.9 5.4 5.7 4.0 3.0 5.7 20
KEARNY MESA 4.3 4.6 C C 9.2 15.4 7.8 2.8 2.1 2.2 2.6 2.8 1.9 1.7 1.4 1.1 1.2 1.2 2.8 3.4 4.2 7.9 4.0 15.4 05
OTAY MESA DVN 2.8 2.7 C C 3.9 3.1 4.5 3.4 5.5 7.4 7.6 3.1 2.2 2.1 2.3 1.8 2.1 2.1 2.1 2.4 2.6 4.1 3.3 7.6 10
PENDLETON 5.2 5.6 C C 6.9 7.5 5.8 8.5 3.6 2.8 1.3 2.3 1.5 1.1 1.6 1.2 .8 .8 1.2 2.1 1.4 1.5 3.1 8.5 07
SAN YSIDRO 10.8 8.7 C C 15.7 26.0 34.9 29.5 15.0 7.7 3.4 3.1 2.4 3.2 3.3 3.6 3.7 4.1 8.1 9.1 7.4 10.9 10.5 34.9 06
06 CO PPM CARMEL MT RCH .2 .2 C C .2 .6 .3 .2 .3 .2 .2 .4 .4 .5 .4 .4 .5 .5 .5 .4 .5 .5 .4 .6 05
SAN YSIDRO .2 .2 C C .4 .5 .8 .6 .4 .3 .2 .2 .2 .2 .2 .2 .2 .2 .3 .3 .3 .4 .3 .8 06
07 H2S PPB IB CIVIC CTR 1.4 1.6 3.2 3.3 16.2 6.9 2.1 1.9 .8 .4 .4 .4 .4 .4 .4 .4 .5 .4 .4 .5 .6 10.8 2.4 16.2 04
NESTOR - BES 1.6 1.9 4.2 3.9 10.6 18.9 2.4 2.0 .9 .9 .9 .4 .3 .4 .9 .9 .7 .7 6.4 10.6 6.0 39.8 5.2 39.8 21
SAN YSIDRO .8 1.7 1.0 3.3 2.7 2.0 2.5 2.0 1.1 .9 .6 .7 .9 .7 .6 .6 .6 .8 4.3 3.8 1.9 2.0 1.6 4.3 18
10 INTMP °C ALPINE 26 26 26 26 26 26 25 25 25 26 25 25 25 25 25 25 25 25 26 25 26 26 25 26 00
CARMEL MT RCH 24 24 25 25 25 25 25 25 25 25 24 24 24 24 24 24 24 24 24 24 24 24 24 25 02
CHULA VISTA 25 25 25 25 24 25 25 25 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 25 00
DOWNTOWN SE 25 25 25 25 25 25 25 25 25 25 24 24 24 24 24 24 24 24 24 24 25 25 25 25 00
EL CAJON LES 26 26 26 26 26 26 26 26 26 26 26 26 26 26 25 25 25 25 25 25 26 26 26 26 00
KEARNY MESA 24 24 24 24 24 24 24 24 25 24 24 24 24 24 25 25 25 25 25 25 25 25 24 25 08
OTAY MESA DVN 27 27 27 27 27 26 26 27 M M 28 27 27 27 27 27 27 27 27 27 27 27 27 28 10
PENDLETON 26 26 26 26 26 25 25 25 25 25 25 25 25 25 25 25 25 25 25 26 26 26 25 26 00
SAN YSIDRO 24 24 24 24 24 23 23 23 24 24 M 24 24 24 24 24 24 24 24 24 25 25 24 25 20
10 INTMP °C        IB CIVIC CTR 27 27 27 28 28 27 27 26 25 24 24 24 24 24 25 25 26 26 26 26 26 26 26 28 03
NESTOR - BES 26 26 26 25 25 25 26 25 25 25 25 24 24 24 24 25 25 26 26 26 26 26 25 26 00
11 PM2.5 µg/M3 ALPINE 8.4 8.3 7.9 6.1 6.4 6.8 6.7 7.1 6.0 5.2 4.6 5.9 5.6 5.9 8.2 8.8 8.6 7.6 8.1 8.3 8.5 8.6 7.1 8.8 15
CARMEL MT RCH 7.0 7.6 9.3 8.7 8.2 7.5 8.1 10.8 8.5 8.0 7.8 8.0 9.1 9.9 9.9 9.2 9.2 7.9 7.3 7.0 7.2 7.0 8.3 10.8 07
CHULA VISTA 9.5 8.2 7.4 7.2 8.2 12.9 11.5 8.2 9.1 10.6 9.5 9.9 9.0 10.2 9.8 9.5 8.7 8.1 8.6 9.0 7.5 7.3 9.0 12.9 05
DOWNTOWN SE 10.0 10.6 8.2 8.3 8.8 11.1 13.1 9.6 7.9 8.9 9.1 10.5 9.4 9.6 8.9 9.0 8.9 7.9 8.0 9.2 9.6 10.1 9.3 13.1 06
EL CAJON LES 9.9 8.9 10.7 9.1 7.0 7.4 8.0 8.9 7.3 7.7 7.6 6.1 7.3 9.6 9.4 8.5 8.0 7.9 7.4 7.8 8.1 8.4 8.2 10.7 02
KEARNY MESA 7.0 7.4 7.3 9.0 8.9 8.6 9.1 8.1 8.0 8.9 9.2 11.1 11.3 10.9 9.8 8.7 7.9 7.3 7.0 7.0 7.4 7.2 8.5 11.3 12
Current Date: 4/17/2026 10:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
OTAY MESA DVN 7.3 7.6 7.1 8.8 14.6 8.7 6.5 9.3 8.5 10.1 11.5 10.0 9.7 9.3 9.5 8.8 8.2 7.9 7.8 7.9 8.3 11.2 9.0 14.6 04
PENDLETON 6.9 7.1 7.0 7.2 7.5 7.5 7.4 7.3 7.1 6.9 6.7 7.3 8.1 7.3 7.8 7.7 7.5 7.2 6.7 6.7 7.2 8.2 7.2 8.2 21
SAN YSIDRO 12.7 10.9 10.0 13.7 12.8 12.2 19.0 20.5 14.2 11.8 9.0 9.3 8.7 8.7 8.9 8.3 8.5 7.9 7.1 8.2 7.5 10.1 10.9 20.5 07
12 VWDR ° ALPINE 148 130 114 105 58 48 346 341 301 229 206 258 263 239 262 272 271 264 258 243 326 38 0 346 06
CHULA VISTA 112 102 112 104 105 108 95 118 183 245 252 257 265 257 254 250 259 251 241 245 286 152 0 286 20
DOWNTOWN SE 102 88 109 98 103 87 92 123 194 209 221 226 257 259 247 253 259 258 233 257 339 353 0 353 21
EL CAJON LES 143 129 130 113 113 111 71 66 309 267 321 4 247 256 259 266 254 256 206 209 189 24 0 321 10
KEARNY MESA 90 95 104 107 97 90 91 119 178 196 274 277 287 285 282 285 289 282 284 285 312 47 0 312 20
OTAY MESA DVN 153 128 132 102 117 116 111 147 171 235 266 288 288 280 282 283 283 282 282 339 351 9 0 351 20
PENDLETON 95 85 91 74 71 68 57 64 102 215 219 222 253 263 273 274 264 251 231 214 180 152 0 274 15
13 SIGTHETA ° ALPINE 53 63 15 22 43 42 28 36 46 45 38 46 52 40 32 27 27 28 24 32 18 24 36 63 01
CHULA VISTA 11 11 11 12 11 14 12 21 34 52 25 30 22 24 23 22 23 22 21 20 22 42 22 52 09
DOWNTOWN SE 15 14 14 14 15 16 21 28 42 22 20 25 26 25 24 32 26 25 21 21 29 19 22 42 08
EL CAJON LES 14 15 12 16 13 16 18 33 56 54 59 43 38 25 25 25 23 22 17 18 42 23 28 59 10
KEARNY MESA 8 7 6 7 10 9 16 24 52 43 39 26 24 20 18 15 15 14 7 5 12 13 18 52 08
OTAY MESA DVN 14 10 9 9 9 10 13 30 38 52 42 30 21 18 16 13 12 12 16 13 12 22 19 52 09
PENDLETON 8 6 7 7 7 8 8 12 26 16 10 13 8 14 16 16 14 8 9 10 11 9 11 26 08
14 VWSP MPH ALPINE 1.1 .4 3.7 1.8 1.2 1.6 1.6 2.4 2.3 2.7 3.8 3.2 3.6 5.1 5.9 5.7 5.3 4.1 1.9 1.1 1.7 1.1 .0 5.9 14
CHULA VISTA 3.9 5.4 5.0 4.5 4.0 3.7 6.0 4.9 2.7 3.8 6.4 5.9 7.9 7.5 7.6 6.8 6.1 4.8 2.6 2.0 1.8 .7 .0 7.9 12
DOWNTOWN SE 3.3 4.3 4.9 4.4 3.8 3.1 3.2 3.4 4.0 6.1 7.2 6.7 6.9 6.8 6.7 5.7 5.3 4.7 3.7 2.8 1.5 2.2 .0 7.2 10
EL CAJON LES 3.0 3.6 3.9 3.6 4.0 3.3 3.2 2.4 1.1 1.2 2.9 3.7 3.8 6.9 6.6 7.2 6.1 5.2 5.0 3.4 1.7 2.6 .0 7.2 15
KEARNY MESA 2.3 5.4 5.1 5.5 3.7 3.7 3.2 5.3 3.0 1.9 4.0 8.3 7.9 9.2 10.1 9.6 8.2 6.3 4.9 5.3 2.5 3.1 .0 10.1 14
OTAY MESA DVN 5.9 5.8 7.3 6.5 7.0 7.3 5.5 4.6 3.5 2.9 6.0 7.8 9.0 10.0 9.2 10.1 9.0 7.3 5.1 3.3 2.9 1.2 .0 10.1 15
PENDLETON 5.5 5.7 5.4 5.9 5.8 6.6 7.2 7.2 4.6 7.2 9.8 9.9 11.3 8.4 6.1 6.1 6.4 9.3 7.9 6.8 5.0 3.8 .0 11.3 12
15 SWSP MPH ALPINE 1.5 1.7 3.8 2.1 1.5 2.1 2.2 2.9 3.1 3.8 4.7 4.7 4.9 6.5 6.9 6.4 5.9 4.6 2.2 1.5 1.9 1.4 3.5 6.9 14
CHULA VISTA 4.0 5.5 5.1 4.6 4.0 3.8 6.1 5.3 4.2 4.8 7.0 6.8 8.4 8.2 8.2 7.3 6.6 5.2 2.8 2.1 2.0 .8 5.1 8.4 12
DOWNTOWN SE 3.5 4.4 5.1 4.5 4.0 3.2 3.5 3.8 5.3 6.6 7.7 7.8 7.6 7.5 7.3 6.6 5.9 5.3 4.0 3.0 2.3 2.3 5.1 7.8 11
EL CAJON LES 3.1 3.7 4.0 3.7 4.1 3.4 3.6 2.7 2.5 3.7 4.2 4.5 5.9 7.6 7.2 7.9 6.5 5.6 5.3 3.6 1.9 2.9 4.4 7.9 15
KEARNY MESA 2.4 5.5 5.2 5.6 3.8 3.8 3.5 5.7 4.4 4.4 5.7 9.2 8.6 9.9 10.6 10.0 8.6 6.5 4.9 5.3 2.7 3.1 5.9 10.6 14
OTAY MESA DVN 6.1 5.9 7.4 6.6 7.2 7.5 5.8 5.1 4.3 4.3 7.1 8.7 9.4 10.5 9.6 10.4 9.2 7.5 5.4 3.4 3.2 2.2 6.7 10.5 13
PENDLETON 5.5 5.7 5.4 6.0 5.8 6.7 7.3 7.4 5.5 7.5 10.0 10.5 11.4 8.6 6.3 6.3 6.6 9.4 8.0 7.0 5.2 3.9 7.1 11.4 12
16 AMBTEMP °F ALPINE 50.9 51.0 49.5 46.7 46.6 48.1 50.5 53.5 56.5 60.4 64.9 67.9 71.1 73.3 72.1 70.2 67.7 64.3 60.1 57.6 56.1 55.0 58.8 73.3 13
CARMEL MT RCH 57.2 56.7 55.8 54.8 54.2 54.2 56.3 60.3 63.2 66.2 69.9 72.0 72.7 73.1 71.8 70.1 68.6 66.3 63.2 61.1 60.4 59.9 63.1 73.1 13
CHULA VISTA 57.6 57.7 57.9 57.2 56.2 56.0 58.8 63.8 66.1 67.0 66.9 67.6 67.6 68.0 67.6 67.1 66.1 65.0 63.6 63.1 62.7 62.1 63.0 68.0 13
DOWNTOWN SE 58.2 58.1 58.3 57.5 56.8 56.5 58.5 62.8 65.5 67.3 67.8 69.3 69.1 69.3 69.5 68.6 67.6 65.7 63.9 63.1 62.8 62.3 63.6 69.5 14
EL CAJON LES 58.3 58.0 56.5 55.1 54.1 53.5 56.4 60.3 64.5 68.0 71.7 73.9 76.3 76.4 76.1 74.5 72.0 68.9 65.1 63.3 62.0 61.7 64.8 76.4 13
KEARNY MESA 56.2 57.0 56.0 55.1 54.4 54.7 58.8 62.6 64.3 67.2 69.8 70.2 71.0 71.4 71.2 68.8 67.1 65.0 62.6 60.8 60.9 58.8 62.9 71.4 13
OTAY MESA DVN 58.1 57.9 57.6 55.8 56.0 56.8 59.4 61.9 64.0 67.7 70.4 69.7 70.4 70.0 69.4 67.7 65.9 64.2 61.4 60.4 59.6 59.0 62.9 70.4 10
PENDLETON 59.9 59.0 58.3 57.3 56.7 56.3 57.9 61.0 64.8 66.1 66.7 67.3 67.3 67.0 67.2 67.7 67.3 66.7 65.2 64.7 64.6 63.9 63.3 67.7 15
Current Date: 4/17/2026 10:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
SAN YSIDRO 57.8 57.8 57.8 57.3 57.0 57.4 60.3 63.1 65.9 68.1 69.1 69.3 69.4 69.3 69.3 68.4 67.3 65.5 63.7 62.8 62.4 61.9 63.7 69.4 12
17 RELHUM % ALPINE 90 89 90 91 92 85 78 68 62 47 39 39 33 31 42 48 56 65 77 83 88 91 67 92 04
EL CAJON LES 81 79 78 80 82 82 71 63 55 48 40 30 35 42 43 48 53 60 69 75 79 80 62 82 04
KEARNY MESA 86 83 82 80 81 80 72 62 60 53 45 50 49 50 52 60 66 72 77 83 84 85 69 86 00
18 PRES mmHg EL CAJON LES 748 748 748 748 748 748 749 749 749 749 749 749 748 748 747 747 747 748 748 748 749 749 748 749 06
KEARNY MESA 748 748 748 748 748 749 749 750 750 750 750 750 749 749 749 749 749 749 749 749 750 750 749 750 07
19 SOLAR W/M2 EL CAJON LES 1 1 -2 -1 -1 27 192 413 627 808 932 990 972 886 740 544 318 100 2 -2 -2 -1 343 990 11
KEARNY MESA 2 2 1 1 1 32 216 399 647 832 942 990 970 886 745 559 338 119 8 1 1 1 350 990 11
20 UVRAD W/M2 EL CAJON LES 0 0 0 0 0 2 9 21 33 43 50 53 52 47 38 27 15 5 0 0 0 0 18 53 11
25 NOY EL CAJON LES 4.04 3.15 2.60 2.99 2.54 C C 5.82 2.52 2.68 4.07 3.23 3.89 4.52 4.64 4.08 3.48 3.53 4.97 5.67 6.02 4.38 3.94 6.02 20
26 NOY-NO EL CAJON LES 4.01 3.13 2.59 2.95 2.49 C C 4.37 2.13 2.29 3.10 2.86 3.43 3.97 3.82 3.40 3.04 3.29 4.78 5.42 5.93 4.35 3.56 5.93 20
27 NO Trace EL CAJON LES .02 .02 .01 .03 .05 C C 1.45 .39 .38 .97 .37 .46 .55 .82 .67 .43 .24 .19 .24 .09 .02 .37 1.45 07
28 SO2 Tr PPB EL CAJON LES .0 .0 C C C .0 .0 .0 .0 .0 .0 .0 .0 .1 .1 .0 .0 .0 .0 .0 .0 .0 .0 .1 13
29 CO Tr PPB EL CAJON LES 182.9 172.6 C C C 201.1 192.8 219.0 161.3 163.8 194.3 166.0 203.3 226.4 223.3 197.4 196.5 193.1 200.5 208.4 218.3 216.3 196.7 226.4 13
BCarbon ug/m3 10TH AVE MARIN 1.02 < .62 < .94 1.18 < .94 < .28 .34 .41 .31 .33 < < .33 .18 .26 .26 .34 .57 .52 1.18 05
ALPINE < .12 .15 .17 .16 .22 .20 .28 .20 .21 .19 .20 .18 < < < < .19 .19 .23 .24 .25 .20 .28 07
BOSTON AVE .69 .82 .50 .67 .71 .97 1.21 .61 .40 .38 .24 .26 .28 .27 .18 .14 .14 .17 .19 .51 .51 .95 .49 1.21 06
CHICANO PARK .53 .77 .37 .60 .80 < .96 .50 < .29 .25 < .21 .26 .27 < .25 .23 < .34 .23 .56 .44 .96 06
DOWNTOWN SE .64 .74 .41 < .54 .71 .93 .54 .24 < .30 < .20 .22 .21 < .19 .16 < .28 .28 < .41 .93 06
OCEANVIEW BLV .51 .63 .39 .57 .48 .59 .66 < < .34 .36 .35 < .27 .22 .20 .16 .19 .31 .78 .36 .57 .42 .78 19
OTAY MESA DVN .31 .68 .33 < .99 .40 < .22 < < .59 .30 .21 < .17 .16 .12 .13 .11 < < .29 .33 .99 04
SAN YSIDRO 1.63 1.20 < .77 1.20 < 2.02 < .85 < < < .13 .14 .12 < .10 .11 .19 .34 < < .68 2.02 06
PM10 STD ALPINE 18.6 19.2 17.2 13.3 13.8 15.6 16.5 17.7 15.8 13.3 13.8 25.1 24.2 28.1 30.6 27.2 26.6 22.5 24.1 23.9 23.0 21.9 20.5 30.6 14
CARMEL MT RCH 17.6 18.9 21.3 20.2 19.2 17.5 19.3 23.4 22.7 22.9 21.1 21.2 25.6 29.1 28.2 24.6 24.7 21.5 19.3 17.4 19.6 17.3 21.4 29.1 13
CHULA VISTA 28.2 28.4 20.2 20.7 24.7 34.7 32.1 29.7 30.9 37.3 28.9 27.6 24.4 27.2 26.8 24.3 23.4 22.2 23.5 23.7 21.6 19.0 26.3 37.3 09
DOWNTOWN SE 26.2 28.2 22.0 20.9 22.7 30.7 38.0 31.3 25.2 32.8 28.0 39.1 25.3 31.9 31.4 24.1 24.4 23.2 23.4 22.1 22.4 24.8 27.1 39.1 11
EL CAJON LES 23.3 23.4 24.3 22.2 16.4 16.6 19.9 24.5 19.4 22.8 21.6 18.0 26.7 29.9 27.2 24.3 21.9 21.3 22.0 23.2 20.9 22.4 22.3 29.9 13
KEARNY MESA 18.4 20.1 17.6 21.8 20.7 20.5 22.9 22.7 21.2 25.9 26.4 34.4 34.1 32.6 34.9 25.9 22.3 20.1 19.5 18.5 22.7 19.0 23.7 34.9 14
OTAY MESA DVN 19.6 21.4 22.2 24.4 35.8 28.0 25.7 74.3 36.8 43.6 48.8 35.8 35.2 30.6 27.7 25.2 27.4 23.6 22.4 22.7 25.2 47.8 32.0 74.3 07
PENDLETON 16.7 16.0 15.6 16.6 16.3 17.9 17.7 18.7 21.1 21.5 19.3 21.2 25.6 24.5 28.0 27.5 26.8 25.5 19.5 17.9 23.6 30.6 21.2 30.6 21
SAN YSIDRO 31.0 26.3 26.0 33.5 33.2 38.1 68.8 79.3 50.3 38.5 27.5 28.7 25.3 25.5 26.1 25.8 25.3 23.0 21.7 27.0 24.2 25.1 33.1 79.3 07
RAINFALL EL CAJON LES .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00